29 files changed, 5902 insertions, 0 deletions
diff --git a/chromium/third_party/node/node_modules/@babel/traverse/lib/cache.js b/chromium/third_party/node/node_modules/@babel/traverse/lib/cache.js
new file mode 100644
index 00000000000..89f200777be
--- /dev/null
+++ b/chromium/third_party/node/node_modules/@babel/traverse/lib/cache.js
@@ -0,0 +1,26 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.clear = clear;
+exports.clearPath = clearPath;
+exports.clearScope = clearScope;
+exports.scope = exports.path = void 0;
+let path = new WeakMap();
+exports.path = path;
+let scope = new WeakMap();
+exports.scope = scope;
+
+function clear() {
+  clearPath();
+  clearScope();
+}
+
+function clearPath() {
+  exports.path = path = new WeakMap();
+}
+
+function clearScope() {
+  exports.scope = scope = new WeakMap();
+}
+\ No newline at end of file
diff --git a/chromium/third_party/node/node_modules/@babel/traverse/lib/context.js b/chromium/third_party/node/node_modules/@babel/traverse/lib/context.js
new file mode 100644
index 00000000000..25e2e0a7501
--- /dev/null
+++ b/chromium/third_party/node/node_modules/@babel/traverse/lib/context.js
@@ -0,0 +1,137 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+var _path = require("./path");
+
+var _t = require("@babel/types");
+
+const {
+  VISITOR_KEYS
+} = _t;
+
+class TraversalContext {
+  constructor(scope, opts, state, parentPath) {
+    this.queue = null;
+    this.priorityQueue = null;
+    this.parentPath = parentPath;
+    this.scope = scope;
+    this.state = state;
+    this.opts = opts;
+  }
+
+  shouldVisit(node) {
+    const opts = this.opts;
+    if (opts.enter || opts.exit) return true;
+    if (opts[node.type]) return true;
+    const keys = VISITOR_KEYS[node.type];
+    if (!(keys != null && keys.length)) return false;
+
+    for (const key of keys) {
+      if (node[key]) return true;
+    }
+
+    return false;
+  }
+
+  create(node, obj, key, listKey) {
+    return _path.default.get({
+      parentPath: this.parentPath,
+      parent: node,
+      container: obj,
+      key: key,
+      listKey
+    });
+  }
+
+  maybeQueue(path, notPriority) {
+    if (this.queue) {
+      if (notPriority) {
+        this.queue.push(path);
+      } else {
+        this.priorityQueue.push(path);
+      }
+    }
+  }
+
+  visitMultiple(container, parent, listKey) {
+    if (container.length === 0) return false;
+    const queue = [];
+
+    for (let key = 0; key < container.length; key++) {
+      const node = container[key];
+
+      if (node && this.shouldVisit(node)) {
+        queue.push(this.create(parent, container, key, listKey));
+      }
+    }
+
+    return this.visitQueue(queue);
+  }
+
+  visitSingle(node, key) {
+    if (this.shouldVisit(node[key])) {
+      return this.visitQueue([this.create(node, node, key)]);
+    } else {
+      return false;
+    }
+  }
+
+  visitQueue(queue) {
+    this.queue = queue;
+    this.priorityQueue = [];
+    const visited = new WeakSet();
+    let stop = false;
+
+    for (const path of queue) {
+      path.resync();
+
+      if (path.contexts.length === 0 || path.contexts[path.contexts.length - 1] !== this) {
+        path.pushContext(this);
+      }
+
+      if (path.key === null) continue;
+      const {
+        node
+      } = path;
+      if (visited.has(node)) continue;
+      if (node) visited.add(node);
+
+      if (path.visit()) {
+        stop = true;
+        break;
+      }
+
+      if (this.priorityQueue.length) {
+        stop = this.visitQueue(this.priorityQueue);
+        this.priorityQueue = [];
+        this.queue = queue;
+        if (stop) break;
+      }
+    }
+
+    for (const path of queue) {
+      path.popContext();
+    }
+
+    this.queue = null;
+    return stop;
+  }
+
+  visit(node, key) {
+    const nodes = node[key];
+    if (!nodes) return false;
+
+    if (Array.isArray(nodes)) {
+      return this.visitMultiple(nodes, node, key);
+    } else {
+      return this.visitSingle(node, key);
+    }
+  }
+
+}
+
+exports.default = TraversalContext;
+\ No newline at end of file
diff --git a/chromium/third_party/node/node_modules/@babel/traverse/lib/hub.js b/chromium/third_party/node/node_modules/@babel/traverse/lib/hub.js
new file mode 100644
index 00000000000..fe139d2a8f2
--- /dev/null
+++ b/chromium/third_party/node/node_modules/@babel/traverse/lib/hub.js
@@ -0,0 +1,23 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+class Hub {
+  getCode() {}
+
+  getScope() {}
+
+  addHelper() {
+    throw new Error("Helpers are not supported by the default hub.");
+  }
+
+  buildError(node, msg, Error = TypeError) {
+    return new Error(msg);
+  }
+
+}
+
+exports.default = Hub;
+\ No newline at end of file
diff --git a/chromium/third_party/node/node_modules/@babel/traverse/lib/index.js b/chromium/third_party/node/node_modules/@babel/traverse/lib/index.js
new file mode 100644
index 00000000000..aa4616c9f63
--- /dev/null
+++ b/chromium/third_party/node/node_modules/@babel/traverse/lib/index.js
@@ -0,0 +1,118 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+Object.defineProperty(exports, "NodePath", {
+  enumerable: true,
+  get: function () {
+    return _path.default;
+  }
+});
+Object.defineProperty(exports, "Scope", {
+  enumerable: true,
+  get: function () {
+    return _scope.default;
+  }
+});
+Object.defineProperty(exports, "Hub", {
+  enumerable: true,
+  get: function () {
+    return _hub.default;
+  }
+});
+exports.visitors = exports.default = void 0;
+
+var _context = require("./context");
+
+var visitors = require("./visitors");
+
+exports.visitors = visitors;
+
+var _t = require("@babel/types");
+
+var cache = require("./cache");
+
+var _path = require("./path");
+
+var _scope = require("./scope");
+
+var _hub = require("./hub");
+
+const {
+  VISITOR_KEYS,
+  removeProperties,
+  traverseFast
+} = _t;
+
+function traverse(parent, opts = {}, scope, state, parentPath) {
+  if (!parent) return;
+
+  if (!opts.noScope && !scope) {
+    if (parent.type !== "Program" && parent.type !== "File") {
+      throw new Error("You must pass a scope and parentPath unless traversing a Program/File. " + `Instead of that you tried to traverse a ${parent.type} node without ` + "passing scope and parentPath.");
+    }
+  }
+
+  if (!VISITOR_KEYS[parent.type]) {
+    return;
+  }
+
+  visitors.explode(opts);
+  traverse.node(parent, opts, scope, state, parentPath);
+}
+
+var _default = traverse;
+exports.default = _default;
+traverse.visitors = visitors;
+traverse.verify = visitors.verify;
+traverse.explode = visitors.explode;
+
+traverse.cheap = function (node, enter) {
+  return traverseFast(node, enter);
+};
+
+traverse.node = function (node, opts, scope, state, parentPath, skipKeys) {
+  const keys = VISITOR_KEYS[node.type];
+  if (!keys) return;
+  const context = new _context.default(scope, opts, state, parentPath);
+
+  for (const key of keys) {
+    if (skipKeys && skipKeys[key]) continue;
+    if (context.visit(node, key)) return;
+  }
+};
+
+traverse.clearNode = function (node, opts) {
+  removeProperties(node, opts);
+  cache.path.delete(node);
+};
+
+traverse.removeProperties = function (tree, opts) {
+  traverseFast(tree, traverse.clearNode, opts);
+  return tree;
+};
+
+function hasDenylistedType(path, state) {
+  if (path.node.type === state.type) {
+    state.has = true;
+    path.stop();
+  }
+}
+
+traverse.hasType = function (tree, type, denylistTypes) {
+  if (denylistTypes != null && denylistTypes.includes(tree.type)) return false;
+  if (tree.type === type) return true;
+  const state = {
+    has: false,
+    type: type
+  };
+  traverse(tree, {
+    noScope: true,
+    denylist: denylistTypes,
+    enter: hasDenylistedType
+  }, null, state);
+  return state.has;
+};
+
+traverse.cache = cache;
+\ No newline at end of file
diff --git a/chromium/third_party/node/node_modules/@babel/traverse/lib/path/ancestry.js b/chromium/third_party/node/node_modules/@babel/traverse/lib/path/ancestry.js
new file mode 100644
index 00000000000..763936bd0f9
--- /dev/null
+++ b/chromium/third_party/node/node_modules/@babel/traverse/lib/path/ancestry.js
@@ -0,0 +1,180 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.findParent = findParent;
+exports.find = find;
+exports.getFunctionParent = getFunctionParent;
+exports.getStatementParent = getStatementParent;
+exports.getEarliestCommonAncestorFrom = getEarliestCommonAncestorFrom;
+exports.getDeepestCommonAncestorFrom = getDeepestCommonAncestorFrom;
+exports.getAncestry = getAncestry;
+exports.isAncestor = isAncestor;
+exports.isDescendant = isDescendant;
+exports.inType = inType;
+
+var _t = require("@babel/types");
+
+var _index = require("./index");
+
+const {
+  VISITOR_KEYS
+} = _t;
+
+function findParent(callback) {
+  let path = this;
+
+  while (path = path.parentPath) {
+    if (callback(path)) return path;
+  }
+
+  return null;
+}
+
+function find(callback) {
+  let path = this;
+
+  do {
+    if (callback(path)) return path;
+  } while (path = path.parentPath);
+
+  return null;
+}
+
+function getFunctionParent() {
+  return this.findParent(p => p.isFunction());
+}
+
+function getStatementParent() {
+  let path = this;
+
+  do {
+    if (!path.parentPath || Array.isArray(path.container) && path.isStatement()) {
+      break;
+    } else {
+      path = path.parentPath;
+    }
+  } while (path);
+
+  if (path && (path.isProgram() || path.isFile())) {
+    throw new Error("File/Program node, we can't possibly find a statement parent to this");
+  }
+
+  return path;
+}
+
+function getEarliestCommonAncestorFrom(paths) {
+  return this.getDeepestCommonAncestorFrom(paths, function (deepest, i, ancestries) {
+    let earliest;
+    const keys = VISITOR_KEYS[deepest.type];
+
+    for (const ancestry of ancestries) {
+      const path = ancestry[i + 1];
+
+      if (!earliest) {
+        earliest = path;
+        continue;
+      }
+
+      if (path.listKey && earliest.listKey === path.listKey) {
+        if (path.key < earliest.key) {
+          earliest = path;
+          continue;
+        }
+      }
+
+      const earliestKeyIndex = keys.indexOf(earliest.parentKey);
+      const currentKeyIndex = keys.indexOf(path.parentKey);
+
+      if (earliestKeyIndex > currentKeyIndex) {
+        earliest = path;
+      }
+    }
+
+    return earliest;
+  });
+}
+
+function getDeepestCommonAncestorFrom(paths, filter) {
+  if (!paths.length) {
+    return this;
+  }
+
+  if (paths.length === 1) {
+    return paths[0];
+  }
+
+  let minDepth = Infinity;
+  let lastCommonIndex, lastCommon;
+  const ancestries = paths.map(path => {
+    const ancestry = [];
+
+    do {
+      ancestry.unshift(path);
+    } while ((path = path.parentPath) && path !== this);
+
+    if (ancestry.length < minDepth) {
+      minDepth = ancestry.length;
+    }
+
+    return ancestry;
+  });
+  const first = ancestries[0];
+
+  depthLoop: for (let i = 0; i < minDepth; i++) {
+    const shouldMatch = first[i];
+
+    for (const ancestry of ancestries) {
+      if (ancestry[i] !== shouldMatch) {
+        break depthLoop;
+      }
+    }
+
+    lastCommonIndex = i;
+    lastCommon = shouldMatch;
+  }
+
+  if (lastCommon) {
+    if (filter) {
+      return filter(lastCommon, lastCommonIndex, ancestries);
+    } else {
+      return lastCommon;
+    }
+  } else {
+    throw new Error("Couldn't find intersection");
+  }
+}
+
+function getAncestry() {
+  let path = this;
+  const paths = [];
+
+  do {
+    paths.push(path);
+  } while (path = path.parentPath);
+
+  return paths;
+}
+
+function isAncestor(maybeDescendant) {
+  return maybeDescendant.isDescendant(this);
+}
+
+function isDescendant(maybeAncestor) {
+  return !!this.findParent(parent => parent === maybeAncestor);
+}
+
+function inType(...candidateTypes) {
+  let path = this;
+
+  while (path) {
+    for (const type of candidateTypes) {
+      if (path.node.type === type) return true;
+    }
+
+    path = path.parentPath;
+  }
+
+  return false;
+}
+\ No newline at end of file
diff --git a/chromium/third_party/node/node_modules/@babel/traverse/lib/path/comments.js b/chromium/third_party/node/node_modules/@babel/traverse/lib/path/comments.js
new file mode 100644
index 00000000000..0aa6b05b699
--- /dev/null
+++ b/chromium/third_party/node/node_modules/@babel/traverse/lib/path/comments.js
@@ -0,0 +1,42 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.shareCommentsWithSiblings = shareCommentsWithSiblings;
+exports.addComment = addComment;
+exports.addComments = addComments;
+
+var _t = require("@babel/types");
+
+const {
+  addComment: _addComment,
+  addComments: _addComments
+} = _t;
+
+function shareCommentsWithSiblings() {
+  if (typeof this.key === "string") return;
+  const node = this.node;
+  if (!node) return;
+  const trailing = node.trailingComments;
+  const leading = node.leadingComments;
+  if (!trailing && !leading) return;
+  const prev = this.getSibling(this.key - 1);
+  const next = this.getSibling(this.key + 1);
+  const hasPrev = Boolean(prev.node);
+  const hasNext = Boolean(next.node);
+
+  if (hasPrev && !hasNext) {
+    prev.addComments("trailing", trailing);
+  } else if (hasNext && !hasPrev) {
+    next.addComments("leading", leading);
+  }
+}
+
+function addComment(type, content, line) {
+  _addComment(this.node, type, content, line);
+}
+
+function addComments(type, comments) {
+  _addComments(this.node, type, comments);
+}
+\ No newline at end of file
diff --git a/chromium/third_party/node/node_modules/@babel/traverse/lib/path/context.js b/chromium/third_party/node/node_modules/@babel/traverse/lib/path/context.js
new file mode 100644
index 00000000000..a1b34f53e4b
--- /dev/null
+++ b/chromium/third_party/node/node_modules/@babel/traverse/lib/path/context.js
@@ -0,0 +1,253 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.call = call;
+exports._call = _call;
+exports.isBlacklisted = exports.isDenylisted = isDenylisted;
+exports.visit = visit;
+exports.skip = skip;
+exports.skipKey = skipKey;
+exports.stop = stop;
+exports.setScope = setScope;
+exports.setContext = setContext;
+exports.resync = resync;
+exports._resyncParent = _resyncParent;
+exports._resyncKey = _resyncKey;
+exports._resyncList = _resyncList;
+exports._resyncRemoved = _resyncRemoved;
+exports.popContext = popContext;
+exports.pushContext = pushContext;
+exports.setup = setup;
+exports.setKey = setKey;
+exports.requeue = requeue;
+exports._getQueueContexts = _getQueueContexts;
+
+var _index = require("../index");
+
+var _index2 = require("./index");
+
+function call(key) {
+  const opts = this.opts;
+  this.debug(key);
+
+  if (this.node) {
+    if (this._call(opts[key])) return true;
+  }
+
+  if (this.node) {
+    return this._call(opts[this.node.type] && opts[this.node.type][key]);
+  }
+
+  return false;
+}
+
+function _call(fns) {
+  if (!fns) return false;
+
+  for (const fn of fns) {
+    if (!fn) continue;
+    const node = this.node;
+    if (!node) return true;
+    const ret = fn.call(this.state, this, this.state);
+
+    if (ret && typeof ret === "object" && typeof ret.then === "function") {
+      throw new Error(`You appear to be using a plugin with an async traversal visitor, ` + `which your current version of Babel does not support. ` + `If you're using a published plugin, you may need to upgrade ` + `your @babel/core version.`);
+    }
+
+    if (ret) {
+      throw new Error(`Unexpected return value from visitor method ${fn}`);
+    }
+
+    if (this.node !== node) return true;
+    if (this._traverseFlags > 0) return true;
+  }
+
+  return false;
+}
+
+function isDenylisted() {
+  var _this$opts$denylist;
+
+  const denylist = (_this$opts$denylist = this.opts.denylist) != null ? _this$opts$denylist : this.opts.blacklist;
+  return denylist && denylist.indexOf(this.node.type) > -1;
+}
+
+function visit() {
+  if (!this.node) {
+    return false;
+  }
+
+  if (this.isDenylisted()) {
+    return false;
+  }
+
+  if (this.opts.shouldSkip && this.opts.shouldSkip(this)) {
+    return false;
+  }
+
+  if (this.shouldSkip || this.call("enter") || this.shouldSkip) {
+    this.debug("Skip...");
+    return this.shouldStop;
+  }
+
+  this.debug("Recursing into...");
+
+  _index.default.node(this.node, this.opts, this.scope, this.state, this, this.skipKeys);
+
+  this.call("exit");
+  return this.shouldStop;
+}
+
+function skip() {
+  this.shouldSkip = true;
+}
+
+function skipKey(key) {
+  if (this.skipKeys == null) {
+    this.skipKeys = {};
+  }
+
+  this.skipKeys[key] = true;
+}
+
+function stop() {
+  this._traverseFlags |= _index2.SHOULD_SKIP | _index2.SHOULD_STOP;
+}
+
+function setScope() {
+  if (this.opts && this.opts.noScope) return;
+  let path = this.parentPath;
+  if (this.key === "key" && path.isMethod()) path = path.parentPath;
+  let target;
+
+  while (path && !target) {
+    if (path.opts && path.opts.noScope) return;
+    target = path.scope;
+    path = path.parentPath;
+  }
+
+  this.scope = this.getScope(target);
+  if (this.scope) this.scope.init();
+}
+
+function setContext(context) {
+  if (this.skipKeys != null) {
+    this.skipKeys = {};
+  }
+
+  this._traverseFlags = 0;
+
+  if (context) {
+    this.context = context;
+    this.state = context.state;
+    this.opts = context.opts;
+  }
+
+  this.setScope();
+  return this;
+}
+
+function resync() {
+  if (this.removed) return;
+
+  this._resyncParent();
+
+  this._resyncList();
+
+  this._resyncKey();
+}
+
+function _resyncParent() {
+  if (this.parentPath) {
+    this.parent = this.parentPath.node;
+  }
+}
+
+function _resyncKey() {
+  if (!this.container) return;
+  if (this.node === this.container[this.key]) return;
+
+  if (Array.isArray(this.container)) {
+    for (let i = 0; i < this.container.length; i++) {
+      if (this.container[i] === this.node) {
+        return this.setKey(i);
+      }
+    }
+  } else {
+    for (const key of Object.keys(this.container)) {
+      if (this.container[key] === this.node) {
+        return this.setKey(key);
+      }
+    }
+  }
+
+  this.key = null;
+}
+
+function _resyncList() {
+  if (!this.parent || !this.inList) return;
+  const newContainer = this.parent[this.listKey];
+  if (this.container === newContainer) return;
+  this.container = newContainer || null;
+}
+
+function _resyncRemoved() {
+  if (this.key == null || !this.container || this.container[this.key] !== this.node) {
+    this._markRemoved();
+  }
+}
+
+function popContext() {
+  this.contexts.pop();
+
+  if (this.contexts.length > 0) {
+    this.setContext(this.contexts[this.contexts.length - 1]);
+  } else {
+    this.setContext(undefined);
+  }
+}
+
+function pushContext(context) {
+  this.contexts.push(context);
+  this.setContext(context);
+}
+
+function setup(parentPath, container, listKey, key) {
+  this.listKey = listKey;
+  this.container = container;
+  this.parentPath = parentPath || this.parentPath;
+  this.setKey(key);
+}
+
+function setKey(key) {
+  var _this$node;
+
+  this.key = key;
+  this.node = this.container[this.key];
+  this.type = (_this$node = this.node) == null ? void 0 : _this$node.type;
+}
+
+function requeue(pathToQueue = this) {
+  if (pathToQueue.removed) return;
+  ;
+  const contexts = this.contexts;
+
+  for (const context of contexts) {
+    context.maybeQueue(pathToQueue);
+  }
+}
+
+function _getQueueContexts() {
+  let path = this;
+  let contexts = this.contexts;
+
+  while (!contexts.length) {
+    path = path.parentPath;
+    if (!path) break;
+    contexts = path.contexts;
+  }
+
+  return contexts;
+}
+\ No newline at end of file
diff --git a/chromium/third_party/node/node_modules/@babel/traverse/lib/path/conversion.js b/chromium/third_party/node/node_modules/@babel/traverse/lib/path/conversion.js
new file mode 100644
index 00000000000..2037748e024
--- /dev/null
+++ b/chromium/third_party/node/node_modules/@babel/traverse/lib/path/conversion.js
@@ -0,0 +1,468 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.toComputedKey = toComputedKey;
+exports.ensureBlock = ensureBlock;
+exports.arrowFunctionToShadowed = arrowFunctionToShadowed;
+exports.unwrapFunctionEnvironment = unwrapFunctionEnvironment;
+exports.arrowFunctionToExpression = arrowFunctionToExpression;
+
+var _t = require("@babel/types");
+
+var _helperFunctionName = require("@babel/helper-function-name");
+
+const {
+  arrowFunctionExpression,
+  assignmentExpression,
+  binaryExpression,
+  blockStatement,
+  callExpression,
+  conditionalExpression,
+  expressionStatement,
+  identifier,
+  isIdentifier,
+  jsxIdentifier,
+  memberExpression,
+  metaProperty,
+  numericLiteral,
+  objectExpression,
+  restElement,
+  returnStatement,
+  sequenceExpression,
+  spreadElement,
+  stringLiteral,
+  super: _super,
+  thisExpression,
+  unaryExpression
+} = _t;
+
+function toComputedKey() {
+  let key;
+
+  if (this.isMemberExpression()) {
+    key = this.node.property;
+  } else if (this.isProperty() || this.isMethod()) {
+    key = this.node.key;
+  } else {
+    throw new ReferenceError("todo");
+  }
+
+  if (!this.node.computed) {
+    if (isIdentifier(key)) key = stringLiteral(key.name);
+  }
+
+  return key;
+}
+
+function ensureBlock() {
+  const body = this.get("body");
+  const bodyNode = body.node;
+
+  if (Array.isArray(body)) {
+    throw new Error("Can't convert array path to a block statement");
+  }
+
+  if (!bodyNode) {
+    throw new Error("Can't convert node without a body");
+  }
+
+  if (body.isBlockStatement()) {
+    return bodyNode;
+  }
+
+  const statements = [];
+  let stringPath = "body";
+  let key;
+  let listKey;
+
+  if (body.isStatement()) {
+    listKey = "body";
+    key = 0;
+    statements.push(body.node);
+  } else {
+    stringPath += ".body.0";
+
+    if (this.isFunction()) {
+      key = "argument";
+      statements.push(returnStatement(body.node));
+    } else {
+      key = "expression";
+      statements.push(expressionStatement(body.node));
+    }
+  }
+
+  this.node.body = blockStatement(statements);
+  const parentPath = this.get(stringPath);
+  body.setup(parentPath, listKey ? parentPath.node[listKey] : parentPath.node, listKey, key);
+  return this.node;
+}
+
+function arrowFunctionToShadowed() {
+  if (!this.isArrowFunctionExpression()) return;
+  this.arrowFunctionToExpression();
+}
+
+function unwrapFunctionEnvironment() {
+  if (!this.isArrowFunctionExpression() && !this.isFunctionExpression() && !this.isFunctionDeclaration()) {
+    throw this.buildCodeFrameError("Can only unwrap the environment of a function.");
+  }
+
+  hoistFunctionEnvironment(this);
+}
+
+function arrowFunctionToExpression({
+  allowInsertArrow = true,
+  specCompliant = false,
+  noNewArrows = !specCompliant
+} = {}) {
+  if (!this.isArrowFunctionExpression()) {
+    throw this.buildCodeFrameError("Cannot convert non-arrow function to a function expression.");
+  }
+
+  const thisBinding = hoistFunctionEnvironment(this, noNewArrows, allowInsertArrow);
+  this.ensureBlock();
+  this.node.type = "FunctionExpression";
+
+  if (!noNewArrows) {
+    const checkBinding = thisBinding ? null : this.parentPath.scope.generateUidIdentifier("arrowCheckId");
+
+    if (checkBinding) {
+      this.parentPath.scope.push({
+        id: checkBinding,
+        init: objectExpression([])
+      });
+    }
+
+    this.get("body").unshiftContainer("body", expressionStatement(callExpression(this.hub.addHelper("newArrowCheck"), [thisExpression(), checkBinding ? identifier(checkBinding.name) : identifier(thisBinding)])));
+    this.replaceWith(callExpression(memberExpression((0, _helperFunctionName.default)(this, true) || this.node, identifier("bind")), [checkBinding ? identifier(checkBinding.name) : thisExpression()]));
+  }
+}
+
+function hoistFunctionEnvironment(fnPath, noNewArrows = true, allowInsertArrow = true) {
+  const thisEnvFn = fnPath.findParent(p => {
+    return p.isFunction() && !p.isArrowFunctionExpression() || p.isProgram() || p.isClassProperty({
+      static: false
+    });
+  });
+  const inConstructor = (thisEnvFn == null ? void 0 : thisEnvFn.node.kind) === "constructor";
+
+  if (thisEnvFn.isClassProperty()) {
+    throw fnPath.buildCodeFrameError("Unable to transform arrow inside class property");
+  }
+
+  const {
+    thisPaths,
+    argumentsPaths,
+    newTargetPaths,
+    superProps,
+    superCalls
+  } = getScopeInformation(fnPath);
+
+  if (inConstructor && superCalls.length > 0) {
+    if (!allowInsertArrow) {
+      throw superCalls[0].buildCodeFrameError("Unable to handle nested super() usage in arrow");
+    }
+
+    const allSuperCalls = [];
+    thisEnvFn.traverse({
+      Function(child) {
+        if (child.isArrowFunctionExpression()) return;
+        child.skip();
+      },
+
+      ClassProperty(child) {
+        child.skip();
+      },
+
+      CallExpression(child) {
+        if (!child.get("callee").isSuper()) return;
+        allSuperCalls.push(child);
+      }
+
+    });
+    const superBinding = getSuperBinding(thisEnvFn);
+    allSuperCalls.forEach(superCall => {
+      const callee = identifier(superBinding);
+      callee.loc = superCall.node.callee.loc;
+      superCall.get("callee").replaceWith(callee);
+    });
+  }
+
+  if (argumentsPaths.length > 0) {
+    const argumentsBinding = getBinding(thisEnvFn, "arguments", () => {
+      const args = () => identifier("arguments");
+
+      if (thisEnvFn.scope.path.isProgram()) {
+        return conditionalExpression(binaryExpression("===", unaryExpression("typeof", args()), stringLiteral("undefined")), thisEnvFn.scope.buildUndefinedNode(), args());
+      } else {
+        return args();
+      }
+    });
+    argumentsPaths.forEach(argumentsChild => {
+      const argsRef = identifier(argumentsBinding);
+      argsRef.loc = argumentsChild.node.loc;
+      argumentsChild.replaceWith(argsRef);
+    });
+  }
+
+  if (newTargetPaths.length > 0) {
+    const newTargetBinding = getBinding(thisEnvFn, "newtarget", () => metaProperty(identifier("new"), identifier("target")));
+    newTargetPaths.forEach(targetChild => {
+      const targetRef = identifier(newTargetBinding);
+      targetRef.loc = targetChild.node.loc;
+      targetChild.replaceWith(targetRef);
+    });
+  }
+
+  if (superProps.length > 0) {
+    if (!allowInsertArrow) {
+      throw superProps[0].buildCodeFrameError("Unable to handle nested super.prop usage");
+    }
+
+    const flatSuperProps = superProps.reduce((acc, superProp) => acc.concat(standardizeSuperProperty(superProp)), []);
+    flatSuperProps.forEach(superProp => {
+      const key = superProp.node.computed ? "" : superProp.get("property").node.name;
+      const isAssignment = superProp.parentPath.isAssignmentExpression({
+        left: superProp.node
+      });
+      const isCall = superProp.parentPath.isCallExpression({
+        callee: superProp.node
+      });
+      const superBinding = getSuperPropBinding(thisEnvFn, isAssignment, key);
+      const args = [];
+
+      if (superProp.node.computed) {
+        args.push(superProp.get("property").node);
+      }
+
+      if (isAssignment) {
+        const value = superProp.parentPath.node.right;
+        args.push(value);
+      }
+
+      const call = callExpression(identifier(superBinding), args);
+
+      if (isCall) {
+        superProp.parentPath.unshiftContainer("arguments", thisExpression());
+        superProp.replaceWith(memberExpression(call, identifier("call")));
+        thisPaths.push(superProp.parentPath.get("arguments.0"));
+      } else if (isAssignment) {
+        superProp.parentPath.replaceWith(call);
+      } else {
+        superProp.replaceWith(call);
+      }
+    });
+  }
+
+  let thisBinding;
+
+  if (thisPaths.length > 0 || !noNewArrows) {
+    thisBinding = getThisBinding(thisEnvFn, inConstructor);
+
+    if (noNewArrows || inConstructor && hasSuperClass(thisEnvFn)) {
+      thisPaths.forEach(thisChild => {
+        const thisRef = thisChild.isJSX() ? jsxIdentifier(thisBinding) : identifier(thisBinding);
+        thisRef.loc = thisChild.node.loc;
+        thisChild.replaceWith(thisRef);
+      });
+      if (!noNewArrows) thisBinding = null;
+    }
+  }
+
+  return thisBinding;
+}
+
+function standardizeSuperProperty(superProp) {
+  if (superProp.parentPath.isAssignmentExpression() && superProp.parentPath.node.operator !== "=") {
+    const assignmentPath = superProp.parentPath;
+    const op = assignmentPath.node.operator.slice(0, -1);
+    const value = assignmentPath.node.right;
+    assignmentPath.node.operator = "=";
+
+    if (superProp.node.computed) {
+      const tmp = superProp.scope.generateDeclaredUidIdentifier("tmp");
+      assignmentPath.get("left").replaceWith(memberExpression(superProp.node.object, assignmentExpression("=", tmp, superProp.node.property), true));
+      assignmentPath.get("right").replaceWith(binaryExpression(op, memberExpression(superProp.node.object, identifier(tmp.name), true), value));
+    } else {
+      assignmentPath.get("left").replaceWith(memberExpression(superProp.node.object, superProp.node.property));
+      assignmentPath.get("right").replaceWith(binaryExpression(op, memberExpression(superProp.node.object, identifier(superProp.node.property.name)), value));
+    }
+
+    return [assignmentPath.get("left"), assignmentPath.get("right").get("left")];
+  } else if (superProp.parentPath.isUpdateExpression()) {
+    const updateExpr = superProp.parentPath;
+    const tmp = superProp.scope.generateDeclaredUidIdentifier("tmp");
+    const computedKey = superProp.node.computed ? superProp.scope.generateDeclaredUidIdentifier("prop") : null;
+    const parts = [assignmentExpression("=", tmp, memberExpression(superProp.node.object, computedKey ? assignmentExpression("=", computedKey, superProp.node.property) : superProp.node.property, superProp.node.computed)), assignmentExpression("=", memberExpression(superProp.node.object, computedKey ? identifier(computedKey.name) : superProp.node.property, superProp.node.computed), binaryExpression("+", identifier(tmp.name), numericLiteral(1)))];
+
+    if (!superProp.parentPath.node.prefix) {
+      parts.push(identifier(tmp.name));
+    }
+
+    updateExpr.replaceWith(sequenceExpression(parts));
+    const left = updateExpr.get("expressions.0.right");
+    const right = updateExpr.get("expressions.1.left");
+    return [left, right];
+  }
+
+  return [superProp];
+}
+
+function hasSuperClass(thisEnvFn) {
+  return thisEnvFn.isClassMethod() && !!thisEnvFn.parentPath.parentPath.node.superClass;
+}
+
+function getThisBinding(thisEnvFn, inConstructor) {
+  return getBinding(thisEnvFn, "this", thisBinding => {
+    if (!inConstructor || !hasSuperClass(thisEnvFn)) return thisExpression();
+    const supers = new WeakSet();
+    thisEnvFn.traverse({
+      Function(child) {
+        if (child.isArrowFunctionExpression()) return;
+        child.skip();
+      },
+
+      ClassProperty(child) {
+        child.skip();
+      },
+
+      CallExpression(child) {
+        if (!child.get("callee").isSuper()) return;
+        if (supers.has(child.node)) return;
+        supers.add(child.node);
+        child.replaceWithMultiple([child.node, assignmentExpression("=", identifier(thisBinding), identifier("this"))]);
+      }
+
+    });
+  });
+}
+
+function getSuperBinding(thisEnvFn) {
+  return getBinding(thisEnvFn, "supercall", () => {
+    const argsBinding = thisEnvFn.scope.generateUidIdentifier("args");
+    return arrowFunctionExpression([restElement(argsBinding)], callExpression(_super(), [spreadElement(identifier(argsBinding.name))]));
+  });
+}
+
+function getSuperPropBinding(thisEnvFn, isAssignment, propName) {
+  const op = isAssignment ? "set" : "get";
+  return getBinding(thisEnvFn, `superprop_${op}:${propName || ""}`, () => {
+    const argsList = [];
+    let fnBody;
+
+    if (propName) {
+      fnBody = memberExpression(_super(), identifier(propName));
+    } else {
+      const method = thisEnvFn.scope.generateUidIdentifier("prop");
+      argsList.unshift(method);
+      fnBody = memberExpression(_super(), identifier(method.name), true);
+    }
+
+    if (isAssignment) {
+      const valueIdent = thisEnvFn.scope.generateUidIdentifier("value");
+      argsList.push(valueIdent);
+      fnBody = assignmentExpression("=", fnBody, identifier(valueIdent.name));
+    }
+
+    return arrowFunctionExpression(argsList, fnBody);
+  });
+}
+
+function getBinding(thisEnvFn, key, init) {
+  const cacheKey = "binding:" + key;
+  let data = thisEnvFn.getData(cacheKey);
+
+  if (!data) {
+    const id = thisEnvFn.scope.generateUidIdentifier(key);
+    data = id.name;
+    thisEnvFn.setData(cacheKey, data);
+    thisEnvFn.scope.push({
+      id: id,
+      init: init(data)
+    });
+  }
+
+  return data;
+}
+
+function getScopeInformation(fnPath) {
+  const thisPaths = [];
+  const argumentsPaths = [];
+  const newTargetPaths = [];
+  const superProps = [];
+  const superCalls = [];
+  fnPath.traverse({
+    ClassProperty(child) {
+      child.skip();
+    },
+
+    Function(child) {
+      if (child.isArrowFunctionExpression()) return;
+      child.skip();
+    },
+
+    ThisExpression(child) {
+      thisPaths.push(child);
+    },
+
+    JSXIdentifier(child) {
+      if (child.node.name !== "this") return;
+
+      if (!child.parentPath.isJSXMemberExpression({
+        object: child.node
+      }) && !child.parentPath.isJSXOpeningElement({
+        name: child.node
+      })) {
+        return;
+      }
+
+      thisPaths.push(child);
+    },
+
+    CallExpression(child) {
+      if (child.get("callee").isSuper()) superCalls.push(child);
+    },
+
+    MemberExpression(child) {
+      if (child.get("object").isSuper()) superProps.push(child);
+    },
+
+    ReferencedIdentifier(child) {
+      if (child.node.name !== "arguments") return;
+      let curr = child.scope;
+
+      do {
+        if (curr.hasOwnBinding("arguments")) {
+          curr.rename("arguments");
+          return;
+        }
+
+        if (curr.path.isFunction() && !curr.path.isArrowFunctionExpression()) {
+          break;
+        }
+      } while (curr = curr.parent);
+
+      argumentsPaths.push(child);
+    },
+
+    MetaProperty(child) {
+      if (!child.get("meta").isIdentifier({
+        name: "new"
+      })) return;
+      if (!child.get("property").isIdentifier({
+        name: "target"
+      })) return;
+      newTargetPaths.push(child);
+    }
+
+  });
+  return {
+    thisPaths,
+    argumentsPaths,
+    newTargetPaths,
+    superProps,
+    superCalls
+  };
+}
+\ No newline at end of file
diff --git a/chromium/third_party/node/node_modules/@babel/traverse/lib/path/evaluation.js b/chromium/third_party/node/node_modules/@babel/traverse/lib/path/evaluation.js
new file mode 100644
index 00000000000..1bea6807cb8
--- /dev/null
+++ b/chromium/third_party/node/node_modules/@babel/traverse/lib/path/evaluation.js
@@ -0,0 +1,401 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.evaluateTruthy = evaluateTruthy;
+exports.evaluate = evaluate;
+const VALID_CALLEES = ["String", "Number", "Math"];
+const INVALID_METHODS = ["random"];
+
+function evaluateTruthy() {
+  const res = this.evaluate();
+  if (res.confident) return !!res.value;
+}
+
+function deopt(path, state) {
+  if (!state.confident) return;
+  state.deoptPath = path;
+  state.confident = false;
+}
+
+function evaluateCached(path, state) {
+  const {
+    node
+  } = path;
+  const {
+    seen
+  } = state;
+
+  if (seen.has(node)) {
+    const existing = seen.get(node);
+
+    if (existing.resolved) {
+      return existing.value;
+    } else {
+      deopt(path, state);
+      return;
+    }
+  } else {
+    const item = {
+      resolved: false
+    };
+    seen.set(node, item);
+
+    const val = _evaluate(path, state);
+
+    if (state.confident) {
+      item.resolved = true;
+      item.value = val;
+    }
+
+    return val;
+  }
+}
+
+function _evaluate(path, state) {
+  if (!state.confident) return;
+
+  if (path.isSequenceExpression()) {
+    const exprs = path.get("expressions");
+    return evaluateCached(exprs[exprs.length - 1], state);
+  }
+
+  if (path.isStringLiteral() || path.isNumericLiteral() || path.isBooleanLiteral()) {
+    return path.node.value;
+  }
+
+  if (path.isNullLiteral()) {
+    return null;
+  }
+
+  if (path.isTemplateLiteral()) {
+    return evaluateQuasis(path, path.node.quasis, state);
+  }
+
+  if (path.isTaggedTemplateExpression() && path.get("tag").isMemberExpression()) {
+    const object = path.get("tag.object");
+    const {
+      node: {
+        name
+      }
+    } = object;
+    const property = path.get("tag.property");
+
+    if (object.isIdentifier() && name === "String" && !path.scope.getBinding(name) && property.isIdentifier() && property.node.name === "raw") {
+      return evaluateQuasis(path, path.node.quasi.quasis, state, true);
+    }
+  }
+
+  if (path.isConditionalExpression()) {
+    const testResult = evaluateCached(path.get("test"), state);
+    if (!state.confident) return;
+
+    if (testResult) {
+      return evaluateCached(path.get("consequent"), state);
+    } else {
+      return evaluateCached(path.get("alternate"), state);
+    }
+  }
+
+  if (path.isExpressionWrapper()) {
+    return evaluateCached(path.get("expression"), state);
+  }
+
+  if (path.isMemberExpression() && !path.parentPath.isCallExpression({
+    callee: path.node
+  })) {
+    const property = path.get("property");
+    const object = path.get("object");
+
+    if (object.isLiteral() && property.isIdentifier()) {
+      const value = object.node.value;
+      const type = typeof value;
+
+      if (type === "number" || type === "string") {
+        return value[property.node.name];
+      }
+    }
+  }
+
+  if (path.isReferencedIdentifier()) {
+    const binding = path.scope.getBinding(path.node.name);
+
+    if (binding && binding.constantViolations.length > 0) {
+      return deopt(binding.path, state);
+    }
+
+    if (binding && path.node.start < binding.path.node.end) {
+      return deopt(binding.path, state);
+    }
+
+    if (binding != null && binding.hasValue) {
+      return binding.value;
+    } else {
+      if (path.node.name === "undefined") {
+        return binding ? deopt(binding.path, state) : undefined;
+      } else if (path.node.name === "Infinity") {
+        return binding ? deopt(binding.path, state) : Infinity;
+      } else if (path.node.name === "NaN") {
+        return binding ? deopt(binding.path, state) : NaN;
+      }
+
+      const resolved = path.resolve();
+
+      if (resolved === path) {
+        return deopt(path, state);
+      } else {
+        return evaluateCached(resolved, state);
+      }
+    }
+  }
+
+  if (path.isUnaryExpression({
+    prefix: true
+  })) {
+    if (path.node.operator === "void") {
+      return undefined;
+    }
+
+    const argument = path.get("argument");
+
+    if (path.node.operator === "typeof" && (argument.isFunction() || argument.isClass())) {
+      return "function";
+    }
+
+    const arg = evaluateCached(argument, state);
+    if (!state.confident) return;
+
+    switch (path.node.operator) {
+      case "!":
+        return !arg;
+
+      case "+":
+        return +arg;
+
+      case "-":
+        return -arg;
+
+      case "~":
+        return ~arg;
+
+      case "typeof":
+        return typeof arg;
+    }
+  }
+
+  if (path.isArrayExpression()) {
+    const arr = [];
+    const elems = path.get("elements");
+
+    for (const elem of elems) {
+      const elemValue = elem.evaluate();
+
+      if (elemValue.confident) {
+        arr.push(elemValue.value);
+      } else {
+        return deopt(elemValue.deopt, state);
+      }
+    }
+
+    return arr;
+  }
+
+  if (path.isObjectExpression()) {
+    const obj = {};
+    const props = path.get("properties");
+
+    for (const prop of props) {
+      if (prop.isObjectMethod() || prop.isSpreadElement()) {
+        return deopt(prop, state);
+      }
+
+      const keyPath = prop.get("key");
+      let key = keyPath;
+
+      if (prop.node.computed) {
+        key = key.evaluate();
+
+        if (!key.confident) {
+          return deopt(key.deopt, state);
+        }
+
+        key = key.value;
+      } else if (key.isIdentifier()) {
+        key = key.node.name;
+      } else {
+        key = key.node.value;
+      }
+
+      const valuePath = prop.get("value");
+      let value = valuePath.evaluate();
+
+      if (!value.confident) {
+        return deopt(value.deopt, state);
+      }
+
+      value = value.value;
+      obj[key] = value;
+    }
+
+    return obj;
+  }
+
+  if (path.isLogicalExpression()) {
+    const wasConfident = state.confident;
+    const left = evaluateCached(path.get("left"), state);
+    const leftConfident = state.confident;
+    state.confident = wasConfident;
+    const right = evaluateCached(path.get("right"), state);
+    const rightConfident = state.confident;
+
+    switch (path.node.operator) {
+      case "||":
+        state.confident = leftConfident && (!!left || rightConfident);
+        if (!state.confident) return;
+        return left || right;
+
+      case "&&":
+        state.confident = leftConfident && (!left || rightConfident);
+        if (!state.confident) return;
+        return left && right;
+    }
+  }
+
+  if (path.isBinaryExpression()) {
+    const left = evaluateCached(path.get("left"), state);
+    if (!state.confident) return;
+    const right = evaluateCached(path.get("right"), state);
+    if (!state.confident) return;
+
+    switch (path.node.operator) {
+      case "-":
+        return left - right;
+
+      case "+":
+        return left + right;
+
+      case "/":
+        return left / right;
+
+      case "*":
+        return left * right;
+
+      case "%":
+        return left % right;
+
+      case "**":
+        return Math.pow(left, right);
+
+      case "<":
+        return left < right;
+
+      case ">":
+        return left > right;
+
+      case "<=":
+        return left <= right;
+
+      case ">=":
+        return left >= right;
+
+      case "==":
+        return left == right;
+
+      case "!=":
+        return left != right;
+
+      case "===":
+        return left === right;
+
+      case "!==":
+        return left !== right;
+
+      case "|":
+        return left | right;
+
+      case "&":
+        return left & right;
+
+      case "^":
+        return left ^ right;
+
+      case "<<":
+        return left << right;
+
+      case ">>":
+        return left >> right;
+
+      case ">>>":
+        return left >>> right;
+    }
+  }
+
+  if (path.isCallExpression()) {
+    const callee = path.get("callee");
+    let context;
+    let func;
+
+    if (callee.isIdentifier() && !path.scope.getBinding(callee.node.name) && VALID_CALLEES.indexOf(callee.node.name) >= 0) {
+      func = global[callee.node.name];
+    }
+
+    if (callee.isMemberExpression()) {
+      const object = callee.get("object");
+      const property = callee.get("property");
+
+      if (object.isIdentifier() && property.isIdentifier() && VALID_CALLEES.indexOf(object.node.name) >= 0 && INVALID_METHODS.indexOf(property.node.name) < 0) {
+        context = global[object.node.name];
+        func = context[property.node.name];
+      }
+
+      if (object.isLiteral() && property.isIdentifier()) {
+        const type = typeof object.node.value;
+
+        if (type === "string" || type === "number") {
+          context = object.node.value;
+          func = context[property.node.name];
+        }
+      }
+    }
+
+    if (func) {
+      const args = path.get("arguments").map(arg => evaluateCached(arg, state));
+      if (!state.confident) return;
+      return func.apply(context, args);
+    }
+  }
+
+  deopt(path, state);
+}
+
+function evaluateQuasis(path, quasis, state, raw = false) {
+  let str = "";
+  let i = 0;
+  const exprs = path.get("expressions");
+
+  for (const elem of quasis) {
+    if (!state.confident) break;
+    str += raw ? elem.value.raw : elem.value.cooked;
+    const expr = exprs[i++];
+    if (expr) str += String(evaluateCached(expr, state));
+  }
+
+  if (!state.confident) return;
+  return str;
+}
+
+function evaluate() {
+  const state = {
+    confident: true,
+    deoptPath: null,
+    seen: new Map()
+  };
+  let value = evaluateCached(this, state);
+  if (!state.confident) value = undefined;
+  return {
+    confident: state.confident,
+    deopt: state.deoptPath,
+    value: value
+  };
+}
+\ No newline at end of file
diff --git a/chromium/third_party/node/node_modules/@babel/traverse/lib/path/family.js b/chromium/third_party/node/node_modules/@babel/traverse/lib/path/family.js
new file mode 100644
index 00000000000..111a331e181
--- /dev/null
+++ b/chromium/third_party/node/node_modules/@babel/traverse/lib/path/family.js
@@ -0,0 +1,407 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.getOpposite = getOpposite;
+exports.getCompletionRecords = getCompletionRecords;
+exports.getSibling = getSibling;
+exports.getPrevSibling = getPrevSibling;
+exports.getNextSibling = getNextSibling;
+exports.getAllNextSiblings = getAllNextSiblings;
+exports.getAllPrevSiblings = getAllPrevSiblings;
+exports.get = get;
+exports._getKey = _getKey;
+exports._getPattern = _getPattern;
+exports.getBindingIdentifiers = getBindingIdentifiers;
+exports.getOuterBindingIdentifiers = getOuterBindingIdentifiers;
+exports.getBindingIdentifierPaths = getBindingIdentifierPaths;
+exports.getOuterBindingIdentifierPaths = getOuterBindingIdentifierPaths;
+
+var _index = require("./index");
+
+var _t = require("@babel/types");
+
+const {
+  getBindingIdentifiers: _getBindingIdentifiers,
+  getOuterBindingIdentifiers: _getOuterBindingIdentifiers,
+  isDeclaration,
+  numericLiteral,
+  unaryExpression
+} = _t;
+const NORMAL_COMPLETION = 0;
+const BREAK_COMPLETION = 1;
+
+function NormalCompletion(path) {
+  return {
+    type: NORMAL_COMPLETION,
+    path
+  };
+}
+
+function BreakCompletion(path) {
+  return {
+    type: BREAK_COMPLETION,
+    path
+  };
+}
+
+function getOpposite() {
+  if (this.key === "left") {
+    return this.getSibling("right");
+  } else if (this.key === "right") {
+    return this.getSibling("left");
+  }
+
+  return null;
+}
+
+function addCompletionRecords(path, records, context) {
+  if (path) {
+    records.push(..._getCompletionRecords(path, context));
+  }
+
+  return records;
+}
+
+function completionRecordForSwitch(cases, records, context) {
+  let lastNormalCompletions = [];
+
+  for (let i = 0; i < cases.length; i++) {
+    const casePath = cases[i];
+
+    const caseCompletions = _getCompletionRecords(casePath, context);
+
+    const normalCompletions = [];
+    const breakCompletions = [];
+
+    for (const c of caseCompletions) {
+      if (c.type === NORMAL_COMPLETION) {
+        normalCompletions.push(c);
+      }
+
+      if (c.type === BREAK_COMPLETION) {
+        breakCompletions.push(c);
+      }
+    }
+
+    if (normalCompletions.length) {
+      lastNormalCompletions = normalCompletions;
+    }
+
+    records.push(...breakCompletions);
+  }
+
+  records.push(...lastNormalCompletions);
+  return records;
+}
+
+function normalCompletionToBreak(completions) {
+  completions.forEach(c => {
+    c.type = BREAK_COMPLETION;
+  });
+}
+
+function replaceBreakStatementInBreakCompletion(completions, reachable) {
+  completions.forEach(c => {
+    if (c.path.isBreakStatement({
+      label: null
+    })) {
+      if (reachable) {
+        c.path.replaceWith(unaryExpression("void", numericLiteral(0)));
+      } else {
+        c.path.remove();
+      }
+    }
+  });
+}
+
+function getStatementListCompletion(paths, context) {
+  const completions = [];
+
+  if (context.canHaveBreak) {
+    let lastNormalCompletions = [];
+
+    for (let i = 0; i < paths.length; i++) {
+      const path = paths[i];
+      const newContext = Object.assign({}, context, {
+        inCaseClause: false
+      });
+
+      if (path.isBlockStatement() && (context.inCaseClause || context.shouldPopulateBreak)) {
+        newContext.shouldPopulateBreak = true;
+      } else {
+        newContext.shouldPopulateBreak = false;
+      }
+
+      const statementCompletions = _getCompletionRecords(path, newContext);
+
+      if (statementCompletions.length > 0 && statementCompletions.every(c => c.type === BREAK_COMPLETION)) {
+        if (lastNormalCompletions.length > 0 && statementCompletions.every(c => c.path.isBreakStatement({
+          label: null
+        }))) {
+          normalCompletionToBreak(lastNormalCompletions);
+          completions.push(...lastNormalCompletions);
+
+          if (lastNormalCompletions.some(c => c.path.isDeclaration())) {
+            completions.push(...statementCompletions);
+            replaceBreakStatementInBreakCompletion(statementCompletions, true);
+          }
+
+          replaceBreakStatementInBreakCompletion(statementCompletions, false);
+        } else {
+          completions.push(...statementCompletions);
+
+          if (!context.shouldPopulateBreak) {
+            replaceBreakStatementInBreakCompletion(statementCompletions, true);
+          }
+        }
+
+        break;
+      }
+
+      if (i === paths.length - 1) {
+        completions.push(...statementCompletions);
+      } else {
+        lastNormalCompletions = [];
+
+        for (let i = 0; i < statementCompletions.length; i++) {
+          const c = statementCompletions[i];
+
+          if (c.type === BREAK_COMPLETION) {
+            completions.push(c);
+          }
+
+          if (c.type === NORMAL_COMPLETION) {
+            lastNormalCompletions.push(c);
+          }
+        }
+      }
+    }
+  } else if (paths.length) {
+    for (let i = paths.length - 1; i >= 0; i--) {
+      const pathCompletions = _getCompletionRecords(paths[i], context);
+
+      if (pathCompletions.length > 1 || pathCompletions.length === 1 && !pathCompletions[0].path.isVariableDeclaration()) {
+        completions.push(...pathCompletions);
+        break;
+      }
+    }
+  }
+
+  return completions;
+}
+
+function _getCompletionRecords(path, context) {
+  let records = [];
+
+  if (path.isIfStatement()) {
+    records = addCompletionRecords(path.get("consequent"), records, context);
+    records = addCompletionRecords(path.get("alternate"), records, context);
+  } else if (path.isDoExpression() || path.isFor() || path.isWhile() || path.isLabeledStatement()) {
+    return addCompletionRecords(path.get("body"), records, context);
+  } else if (path.isProgram() || path.isBlockStatement()) {
+    return getStatementListCompletion(path.get("body"), context);
+  } else if (path.isFunction()) {
+    return _getCompletionRecords(path.get("body"), context);
+  } else if (path.isTryStatement()) {
+    records = addCompletionRecords(path.get("block"), records, context);
+    records = addCompletionRecords(path.get("handler"), records, context);
+  } else if (path.isCatchClause()) {
+    return addCompletionRecords(path.get("body"), records, context);
+  } else if (path.isSwitchStatement()) {
+    return completionRecordForSwitch(path.get("cases"), records, context);
+  } else if (path.isSwitchCase()) {
+    return getStatementListCompletion(path.get("consequent"), {
+      canHaveBreak: true,
+      shouldPopulateBreak: false,
+      inCaseClause: true
+    });
+  } else if (path.isBreakStatement()) {
+    records.push(BreakCompletion(path));
+  } else {
+    records.push(NormalCompletion(path));
+  }
+
+  return records;
+}
+
+function getCompletionRecords() {
+  const records = _getCompletionRecords(this, {
+    canHaveBreak: false,
+    shouldPopulateBreak: false,
+    inCaseClause: false
+  });
+
+  return records.map(r => r.path);
+}
+
+function getSibling(key) {
+  return _index.default.get({
+    parentPath: this.parentPath,
+    parent: this.parent,
+    container: this.container,
+    listKey: this.listKey,
+    key: key
+  }).setContext(this.context);
+}
+
+function getPrevSibling() {
+  return this.getSibling(this.key - 1);
+}
+
+function getNextSibling() {
+  return this.getSibling(this.key + 1);
+}
+
+function getAllNextSiblings() {
+  let _key = this.key;
+  let sibling = this.getSibling(++_key);
+  const siblings = [];
+
+  while (sibling.node) {
+    siblings.push(sibling);
+    sibling = this.getSibling(++_key);
+  }
+
+  return siblings;
+}
+
+function getAllPrevSiblings() {
+  let _key = this.key;
+  let sibling = this.getSibling(--_key);
+  const siblings = [];
+
+  while (sibling.node) {
+    siblings.push(sibling);
+    sibling = this.getSibling(--_key);
+  }
+
+  return siblings;
+}
+
+function get(key, context = true) {
+  if (context === true) context = this.context;
+  const parts = key.split(".");
+
+  if (parts.length === 1) {
+    return this._getKey(key, context);
+  } else {
+    return this._getPattern(parts, context);
+  }
+}
+
+function _getKey(key, context) {
+  const node = this.node;
+  const container = node[key];
+
+  if (Array.isArray(container)) {
+    return container.map((_, i) => {
+      return _index.default.get({
+        listKey: key,
+        parentPath: this,
+        parent: node,
+        container: container,
+        key: i
+      }).setContext(context);
+    });
+  } else {
+    return _index.default.get({
+      parentPath: this,
+      parent: node,
+      container: node,
+      key: key
+    }).setContext(context);
+  }
+}
+
+function _getPattern(parts, context) {
+  let path = this;
+
+  for (const part of parts) {
+    if (part === ".") {
+      path = path.parentPath;
+    } else {
+      if (Array.isArray(path)) {
+        path = path[part];
+      } else {
+        path = path.get(part, context);
+      }
+    }
+  }
+
+  return path;
+}
+
+function getBindingIdentifiers(duplicates) {
+  return _getBindingIdentifiers(this.node, duplicates);
+}
+
+function getOuterBindingIdentifiers(duplicates) {
+  return _getOuterBindingIdentifiers(this.node, duplicates);
+}
+
+function getBindingIdentifierPaths(duplicates = false, outerOnly = false) {
+  const path = this;
+  const search = [path];
+  const ids = Object.create(null);
+
+  while (search.length) {
+    const id = search.shift();
+    if (!id) continue;
+    if (!id.node) continue;
+    const keys = _getBindingIdentifiers.keys[id.node.type];
+
+    if (id.isIdentifier()) {
+      if (duplicates) {
+        const _ids = ids[id.node.name] = ids[id.node.name] || [];
+
+        _ids.push(id);
+      } else {
+        ids[id.node.name] = id;
+      }
+
+      continue;
+    }
+
+    if (id.isExportDeclaration()) {
+      const declaration = id.get("declaration");
+
+      if (isDeclaration(declaration)) {
+        search.push(declaration);
+      }
+
+      continue;
+    }
+
+    if (outerOnly) {
+      if (id.isFunctionDeclaration()) {
+        search.push(id.get("id"));
+        continue;
+      }
+
+      if (id.isFunctionExpression()) {
+        continue;
+      }
+    }
+
+    if (keys) {
+      for (let i = 0; i < keys.length; i++) {
+        const key = keys[i];
+        const child = id.get(key);
+
+        if (Array.isArray(child)) {
+          search.push(...child);
+        } else if (child.node) {
+          search.push(child);
+        }
+      }
+    }
+  }
+
+  return ids;
+}
+
+function getOuterBindingIdentifierPaths(duplicates) {
+  return this.getBindingIdentifierPaths(duplicates, true);
+}
+\ No newline at end of file
diff --git a/chromium/third_party/node/node_modules/@babel/traverse/lib/path/generated/asserts.js b/chromium/third_party/node/node_modules/@babel/traverse/lib/path/generated/asserts.js
new file mode 100644
index 00000000000..bee8a438ea4
--- /dev/null
+++ b/chromium/third_party/node/node_modules/@babel/traverse/lib/path/generated/asserts.js
@@ -0,0 +1,5 @@
+"use strict";
+
+var t = require("@babel/types");
+
+var _index = require("../index");
+\ No newline at end of file
diff --git a/chromium/third_party/node/node_modules/@babel/traverse/lib/path/generated/validators.js b/chromium/third_party/node/node_modules/@babel/traverse/lib/path/generated/validators.js
new file mode 100644
index 00000000000..bee8a438ea4
--- /dev/null
+++ b/chromium/third_party/node/node_modules/@babel/traverse/lib/path/generated/validators.js
@@ -0,0 +1,5 @@
+"use strict";
+
+var t = require("@babel/types");
+
+var _index = require("../index");
+\ No newline at end of file
diff --git a/chromium/third_party/node/node_modules/@babel/traverse/lib/path/generated/virtual-types.js b/chromium/third_party/node/node_modules/@babel/traverse/lib/path/generated/virtual-types.js
new file mode 100644
index 00000000000..bf37ed9378a
--- /dev/null
+++ b/chromium/third_party/node/node_modules/@babel/traverse/lib/path/generated/virtual-types.js
@@ -0,0 +1,3 @@
+"use strict";
+
+var t = require("@babel/types");
+\ No newline at end of file
diff --git a/chromium/third_party/node/node_modules/@babel/traverse/lib/path/index.js b/chromium/third_party/node/node_modules/@babel/traverse/lib/path/index.js
new file mode 100644
index 00000000000..0a1dd80bc0b
--- /dev/null
+++ b/chromium/third_party/node/node_modules/@babel/traverse/lib/path/index.js
@@ -0,0 +1,253 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = exports.SHOULD_SKIP = exports.SHOULD_STOP = exports.REMOVED = void 0;
+
+var virtualTypes = require("./lib/virtual-types");
+
+var _debug = require("debug");
+
+var _index = require("../index");
+
+var _scope = require("../scope");
+
+var _t = require("@babel/types");
+
+var t = _t;
+
+var _cache = require("../cache");
+
+var _generator = require("@babel/generator");
+
+var NodePath_ancestry = require("./ancestry");
+
+var NodePath_inference = require("./inference");
+
+var NodePath_replacement = require("./replacement");
+
+var NodePath_evaluation = require("./evaluation");
+
+var NodePath_conversion = require("./conversion");
+
+var NodePath_introspection = require("./introspection");
+
+var NodePath_context = require("./context");
+
+var NodePath_removal = require("./removal");
+
+var NodePath_modification = require("./modification");
+
+var NodePath_family = require("./family");
+
+var NodePath_comments = require("./comments");
+
+const {
+  validate
+} = _t;
+
+const debug = _debug("babel");
+
+const REMOVED = 1 << 0;
+exports.REMOVED = REMOVED;
+const SHOULD_STOP = 1 << 1;
+exports.SHOULD_STOP = SHOULD_STOP;
+const SHOULD_SKIP = 1 << 2;
+exports.SHOULD_SKIP = SHOULD_SKIP;
+
+class NodePath {
+  constructor(hub, parent) {
+    this.contexts = [];
+    this.state = null;
+    this.opts = null;
+    this._traverseFlags = 0;
+    this.skipKeys = null;
+    this.parentPath = null;
+    this.container = null;
+    this.listKey = null;
+    this.key = null;
+    this.node = null;
+    this.type = null;
+    this.parent = parent;
+    this.hub = hub;
+    this.data = null;
+    this.context = null;
+    this.scope = null;
+  }
+
+  static get({
+    hub,
+    parentPath,
+    parent,
+    container,
+    listKey,
+    key
+  }) {
+    if (!hub && parentPath) {
+      hub = parentPath.hub;
+    }
+
+    if (!parent) {
+      throw new Error("To get a node path the parent needs to exist");
+    }
+
+    const targetNode = container[key];
+
+    let paths = _cache.path.get(parent);
+
+    if (!paths) {
+      paths = new Map();
+
+      _cache.path.set(parent, paths);
+    }
+
+    let path = paths.get(targetNode);
+
+    if (!path) {
+      path = new NodePath(hub, parent);
+      if (targetNode) paths.set(targetNode, path);
+    }
+
+    path.setup(parentPath, container, listKey, key);
+    return path;
+  }
+
+  getScope(scope) {
+    return this.isScope() ? new _scope.default(this) : scope;
+  }
+
+  setData(key, val) {
+    if (this.data == null) {
+      this.data = Object.create(null);
+    }
+
+    return this.data[key] = val;
+  }
+
+  getData(key, def) {
+    if (this.data == null) {
+      this.data = Object.create(null);
+    }
+
+    let val = this.data[key];
+    if (val === undefined && def !== undefined) val = this.data[key] = def;
+    return val;
+  }
+
+  buildCodeFrameError(msg, Error = SyntaxError) {
+    return this.hub.buildError(this.node, msg, Error);
+  }
+
+  traverse(visitor, state) {
+    (0, _index.default)(this.node, visitor, this.scope, state, this);
+  }
+
+  set(key, node) {
+    validate(this.node, key, node);
+    this.node[key] = node;
+  }
+
+  getPathLocation() {
+    const parts = [];
+    let path = this;
+
+    do {
+      let key = path.key;
+      if (path.inList) key = `${path.listKey}[${key}]`;
+      parts.unshift(key);
+    } while (path = path.parentPath);
+
+    return parts.join(".");
+  }
+
+  debug(message) {
+    if (!debug.enabled) return;
+    debug(`${this.getPathLocation()} ${this.type}: ${message}`);
+  }
+
+  toString() {
+    return (0, _generator.default)(this.node).code;
+  }
+
+  get inList() {
+    return !!this.listKey;
+  }
+
+  set inList(inList) {
+    if (!inList) {
+      this.listKey = null;
+    }
+  }
+
+  get parentKey() {
+    return this.listKey || this.key;
+  }
+
+  get shouldSkip() {
+    return !!(this._traverseFlags & SHOULD_SKIP);
+  }
+
+  set shouldSkip(v) {
+    if (v) {
+      this._traverseFlags |= SHOULD_SKIP;
+    } else {
+      this._traverseFlags &= ~SHOULD_SKIP;
+    }
+  }
+
+  get shouldStop() {
+    return !!(this._traverseFlags & SHOULD_STOP);
+  }
+
+  set shouldStop(v) {
+    if (v) {
+      this._traverseFlags |= SHOULD_STOP;
+    } else {
+      this._traverseFlags &= ~SHOULD_STOP;
+    }
+  }
+
+  get removed() {
+    return !!(this._traverseFlags & REMOVED);
+  }
+
+  set removed(v) {
+    if (v) {
+      this._traverseFlags |= REMOVED;
+    } else {
+      this._traverseFlags &= ~REMOVED;
+    }
+  }
+
+}
+
+Object.assign(NodePath.prototype, NodePath_ancestry, NodePath_inference, NodePath_replacement, NodePath_evaluation, NodePath_conversion, NodePath_introspection, NodePath_context, NodePath_removal, NodePath_modification, NodePath_family, NodePath_comments);
+
+for (const type of t.TYPES) {
+  const typeKey = `is${type}`;
+  const fn = t[typeKey];
+
+  NodePath.prototype[typeKey] = function (opts) {
+    return fn(this.node, opts);
+  };
+
+  NodePath.prototype[`assert${type}`] = function (opts) {
+    if (!fn(this.node, opts)) {
+      throw new TypeError(`Expected node path of type ${type}`);
+    }
+  };
+}
+
+for (const type of Object.keys(virtualTypes)) {
+  if (type[0] === "_") continue;
+  if (t.TYPES.indexOf(type) < 0) t.TYPES.push(type);
+  const virtualType = virtualTypes[type];
+
+  NodePath.prototype[`is${type}`] = function (opts) {
+    return virtualType.checkPath(this, opts);
+  };
+}
+
+var _default = NodePath;
+exports.default = _default;
+\ No newline at end of file
diff --git a/chromium/third_party/node/node_modules/@babel/traverse/lib/path/inference/index.js b/chromium/third_party/node/node_modules/@babel/traverse/lib/path/inference/index.js
new file mode 100644
index 00000000000..9f2cec93c2f
--- /dev/null
+++ b/chromium/third_party/node/node_modules/@babel/traverse/lib/path/inference/index.js
@@ -0,0 +1,156 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.getTypeAnnotation = getTypeAnnotation;
+exports._getTypeAnnotation = _getTypeAnnotation;
+exports.isBaseType = isBaseType;
+exports.couldBeBaseType = couldBeBaseType;
+exports.baseTypeStrictlyMatches = baseTypeStrictlyMatches;
+exports.isGenericType = isGenericType;
+
+var inferers = require("./inferers");
+
+var _t = require("@babel/types");
+
+const {
+  anyTypeAnnotation,
+  isAnyTypeAnnotation,
+  isBooleanTypeAnnotation,
+  isEmptyTypeAnnotation,
+  isFlowBaseAnnotation,
+  isGenericTypeAnnotation,
+  isIdentifier,
+  isMixedTypeAnnotation,
+  isNumberTypeAnnotation,
+  isStringTypeAnnotation,
+  isTypeAnnotation,
+  isUnionTypeAnnotation,
+  isVoidTypeAnnotation,
+  stringTypeAnnotation,
+  voidTypeAnnotation
+} = _t;
+
+function getTypeAnnotation() {
+  if (this.typeAnnotation) return this.typeAnnotation;
+  let type = this._getTypeAnnotation() || anyTypeAnnotation();
+  if (isTypeAnnotation(type)) type = type.typeAnnotation;
+  return this.typeAnnotation = type;
+}
+
+const typeAnnotationInferringNodes = new WeakSet();
+
+function _getTypeAnnotation() {
+  const node = this.node;
+
+  if (!node) {
+    if (this.key === "init" && this.parentPath.isVariableDeclarator()) {
+      const declar = this.parentPath.parentPath;
+      const declarParent = declar.parentPath;
+
+      if (declar.key === "left" && declarParent.isForInStatement()) {
+        return stringTypeAnnotation();
+      }
+
+      if (declar.key === "left" && declarParent.isForOfStatement()) {
+        return anyTypeAnnotation();
+      }
+
+      return voidTypeAnnotation();
+    } else {
+      return;
+    }
+  }
+
+  if (node.typeAnnotation) {
+    return node.typeAnnotation;
+  }
+
+  if (typeAnnotationInferringNodes.has(node)) {
+    return;
+  }
+
+  typeAnnotationInferringNodes.add(node);
+
+  try {
+    var _inferer;
+
+    let inferer = inferers[node.type];
+
+    if (inferer) {
+      return inferer.call(this, node);
+    }
+
+    inferer = inferers[this.parentPath.type];
+
+    if ((_inferer = inferer) != null && _inferer.validParent) {
+      return this.parentPath.getTypeAnnotation();
+    }
+  } finally {
+    typeAnnotationInferringNodes.delete(node);
+  }
+}
+
+function isBaseType(baseName, soft) {
+  return _isBaseType(baseName, this.getTypeAnnotation(), soft);
+}
+
+function _isBaseType(baseName, type, soft) {
+  if (baseName === "string") {
+    return isStringTypeAnnotation(type);
+  } else if (baseName === "number") {
+    return isNumberTypeAnnotation(type);
+  } else if (baseName === "boolean") {
+    return isBooleanTypeAnnotation(type);
+  } else if (baseName === "any") {
+    return isAnyTypeAnnotation(type);
+  } else if (baseName === "mixed") {
+    return isMixedTypeAnnotation(type);
+  } else if (baseName === "empty") {
+    return isEmptyTypeAnnotation(type);
+  } else if (baseName === "void") {
+    return isVoidTypeAnnotation(type);
+  } else {
+    if (soft) {
+      return false;
+    } else {
+      throw new Error(`Unknown base type ${baseName}`);
+    }
+  }
+}
+
+function couldBeBaseType(name) {
+  const type = this.getTypeAnnotation();
+  if (isAnyTypeAnnotation(type)) return true;
+
+  if (isUnionTypeAnnotation(type)) {
+    for (const type2 of type.types) {
+      if (isAnyTypeAnnotation(type2) || _isBaseType(name, type2, true)) {
+        return true;
+      }
+    }
+
+    return false;
+  } else {
+    return _isBaseType(name, type, true);
+  }
+}
+
+function baseTypeStrictlyMatches(rightArg) {
+  const left = this.getTypeAnnotation();
+  const right = rightArg.getTypeAnnotation();
+
+  if (!isAnyTypeAnnotation(left) && isFlowBaseAnnotation(left)) {
+    return right.type === left.type;
+  }
+
+  return false;
+}
+
+function isGenericType(genericName) {
+  const type = this.getTypeAnnotation();
+  return isGenericTypeAnnotation(type) && isIdentifier(type.id, {
+    name: genericName
+  });
+}
+\ No newline at end of file
diff --git a/chromium/third_party/node/node_modules/@babel/traverse/lib/path/inference/inferer-reference.js b/chromium/third_party/node/node_modules/@babel/traverse/lib/path/inference/inferer-reference.js
new file mode 100644
index 00000000000..c328dc150f4
--- /dev/null
+++ b/chromium/third_party/node/node_modules/@babel/traverse/lib/path/inference/inferer-reference.js
@@ -0,0 +1,206 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = _default;
+
+var _t = require("@babel/types");
+
+const {
+  BOOLEAN_NUMBER_BINARY_OPERATORS,
+  createFlowUnionType,
+  createTSUnionType,
+  createTypeAnnotationBasedOnTypeof,
+  createUnionTypeAnnotation,
+  isTSTypeAnnotation,
+  numberTypeAnnotation,
+  voidTypeAnnotation
+} = _t;
+
+function _default(node) {
+  if (!this.isReferenced()) return;
+  const binding = this.scope.getBinding(node.name);
+
+  if (binding) {
+    if (binding.identifier.typeAnnotation) {
+      return binding.identifier.typeAnnotation;
+    } else {
+      return getTypeAnnotationBindingConstantViolations(binding, this, node.name);
+    }
+  }
+
+  if (node.name === "undefined") {
+    return voidTypeAnnotation();
+  } else if (node.name === "NaN" || node.name === "Infinity") {
+    return numberTypeAnnotation();
+  } else if (node.name === "arguments") {}
+}
+
+function getTypeAnnotationBindingConstantViolations(binding, path, name) {
+  const types = [];
+  const functionConstantViolations = [];
+  let constantViolations = getConstantViolationsBefore(binding, path, functionConstantViolations);
+  const testType = getConditionalAnnotation(binding, path, name);
+
+  if (testType) {
+    const testConstantViolations = getConstantViolationsBefore(binding, testType.ifStatement);
+    constantViolations = constantViolations.filter(path => testConstantViolations.indexOf(path) < 0);
+    types.push(testType.typeAnnotation);
+  }
+
+  if (constantViolations.length) {
+    constantViolations.push(...functionConstantViolations);
+
+    for (const violation of constantViolations) {
+      types.push(violation.getTypeAnnotation());
+    }
+  }
+
+  if (!types.length) {
+    return;
+  }
+
+  if (isTSTypeAnnotation(types[0]) && createTSUnionType) {
+    return createTSUnionType(types);
+  }
+
+  if (createFlowUnionType) {
+    return createFlowUnionType(types);
+  }
+
+  return createUnionTypeAnnotation(types);
+}
+
+function getConstantViolationsBefore(binding, path, functions) {
+  const violations = binding.constantViolations.slice();
+  violations.unshift(binding.path);
+  return violations.filter(violation => {
+    violation = violation.resolve();
+
+    const status = violation._guessExecutionStatusRelativeTo(path);
+
+    if (functions && status === "unknown") functions.push(violation);
+    return status === "before";
+  });
+}
+
+function inferAnnotationFromBinaryExpression(name, path) {
+  const operator = path.node.operator;
+  const right = path.get("right").resolve();
+  const left = path.get("left").resolve();
+  let target;
+
+  if (left.isIdentifier({
+    name
+  })) {
+    target = right;
+  } else if (right.isIdentifier({
+    name
+  })) {
+    target = left;
+  }
+
+  if (target) {
+    if (operator === "===") {
+      return target.getTypeAnnotation();
+    }
+
+    if (BOOLEAN_NUMBER_BINARY_OPERATORS.indexOf(operator) >= 0) {
+      return numberTypeAnnotation();
+    }
+
+    return;
+  }
+
+  if (operator !== "===" && operator !== "==") return;
+  let typeofPath;
+  let typePath;
+
+  if (left.isUnaryExpression({
+    operator: "typeof"
+  })) {
+    typeofPath = left;
+    typePath = right;
+  } else if (right.isUnaryExpression({
+    operator: "typeof"
+  })) {
+    typeofPath = right;
+    typePath = left;
+  }
+
+  if (!typeofPath) return;
+  if (!typeofPath.get("argument").isIdentifier({
+    name
+  })) return;
+  typePath = typePath.resolve();
+  if (!typePath.isLiteral()) return;
+  const typeValue = typePath.node.value;
+  if (typeof typeValue !== "string") return;
+  return createTypeAnnotationBasedOnTypeof(typeValue);
+}
+
+function getParentConditionalPath(binding, path, name) {
+  let parentPath;
+
+  while (parentPath = path.parentPath) {
+    if (parentPath.isIfStatement() || parentPath.isConditionalExpression()) {
+      if (path.key === "test") {
+        return;
+      }
+
+      return parentPath;
+    }
+
+    if (parentPath.isFunction()) {
+      if (parentPath.parentPath.scope.getBinding(name) !== binding) return;
+    }
+
+    path = parentPath;
+  }
+}
+
+function getConditionalAnnotation(binding, path, name) {
+  const ifStatement = getParentConditionalPath(binding, path, name);
+  if (!ifStatement) return;
+  const test = ifStatement.get("test");
+  const paths = [test];
+  const types = [];
+
+  for (let i = 0; i < paths.length; i++) {
+    const path = paths[i];
+
+    if (path.isLogicalExpression()) {
+      if (path.node.operator === "&&") {
+        paths.push(path.get("left"));
+        paths.push(path.get("right"));
+      }
+    } else if (path.isBinaryExpression()) {
+      const type = inferAnnotationFromBinaryExpression(name, path);
+      if (type) types.push(type);
+    }
+  }
+
+  if (types.length) {
+    if (isTSTypeAnnotation(types[0]) && createTSUnionType) {
+      return {
+        typeAnnotation: createTSUnionType(types),
+        ifStatement
+      };
+    }
+
+    if (createFlowUnionType) {
+      return {
+        typeAnnotation: createFlowUnionType(types),
+        ifStatement
+      };
+    }
+
+    return {
+      typeAnnotation: createUnionTypeAnnotation(types),
+      ifStatement
+    };
+  }
+
+  return getConditionalAnnotation(ifStatement, name);
+}
+\ No newline at end of file
diff --git a/chromium/third_party/node/node_modules/@babel/traverse/lib/path/inference/inferers.js b/chromium/third_party/node/node_modules/@babel/traverse/lib/path/inference/inferers.js
new file mode 100644
index 00000000000..043522458a2
--- /dev/null
+++ b/chromium/third_party/node/node_modules/@babel/traverse/lib/path/inference/inferers.js
@@ -0,0 +1,261 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.VariableDeclarator = VariableDeclarator;
+exports.TypeCastExpression = TypeCastExpression;
+exports.NewExpression = NewExpression;
+exports.TemplateLiteral = TemplateLiteral;
+exports.UnaryExpression = UnaryExpression;
+exports.BinaryExpression = BinaryExpression;
+exports.LogicalExpression = LogicalExpression;
+exports.ConditionalExpression = ConditionalExpression;
+exports.SequenceExpression = SequenceExpression;
+exports.ParenthesizedExpression = ParenthesizedExpression;
+exports.AssignmentExpression = AssignmentExpression;
+exports.UpdateExpression = UpdateExpression;
+exports.StringLiteral = StringLiteral;
+exports.NumericLiteral = NumericLiteral;
+exports.BooleanLiteral = BooleanLiteral;
+exports.NullLiteral = NullLiteral;
+exports.RegExpLiteral = RegExpLiteral;
+exports.ObjectExpression = ObjectExpression;
+exports.ArrayExpression = ArrayExpression;
+exports.RestElement = RestElement;
+exports.ClassDeclaration = exports.ClassExpression = exports.FunctionDeclaration = exports.ArrowFunctionExpression = exports.FunctionExpression = Func;
+exports.CallExpression = CallExpression;
+exports.TaggedTemplateExpression = TaggedTemplateExpression;
+Object.defineProperty(exports, "Identifier", {
+  enumerable: true,
+  get: function () {
+    return _infererReference.default;
+  }
+});
+
+var _t = require("@babel/types");
+
+var _infererReference = require("./inferer-reference");
+
+const {
+  BOOLEAN_BINARY_OPERATORS,
+  BOOLEAN_UNARY_OPERATORS,
+  NUMBER_BINARY_OPERATORS,
+  NUMBER_UNARY_OPERATORS,
+  STRING_UNARY_OPERATORS,
+  anyTypeAnnotation,
+  arrayTypeAnnotation,
+  booleanTypeAnnotation,
+  buildMatchMemberExpression,
+  createFlowUnionType,
+  createTSUnionType,
+  createUnionTypeAnnotation,
+  genericTypeAnnotation,
+  identifier,
+  isTSTypeAnnotation,
+  nullLiteralTypeAnnotation,
+  numberTypeAnnotation,
+  stringTypeAnnotation,
+  tupleTypeAnnotation,
+  unionTypeAnnotation,
+  voidTypeAnnotation
+} = _t;
+
+function VariableDeclarator() {
+  var _type;
+
+  const id = this.get("id");
+  if (!id.isIdentifier()) return;
+  const init = this.get("init");
+  let type = init.getTypeAnnotation();
+
+  if (((_type = type) == null ? void 0 : _type.type) === "AnyTypeAnnotation") {
+    if (init.isCallExpression() && init.get("callee").isIdentifier({
+      name: "Array"
+    }) && !init.scope.hasBinding("Array", true)) {
+      type = ArrayExpression();
+    }
+  }
+
+  return type;
+}
+
+function TypeCastExpression(node) {
+  return node.typeAnnotation;
+}
+
+TypeCastExpression.validParent = true;
+
+function NewExpression(node) {
+  if (this.get("callee").isIdentifier()) {
+    return genericTypeAnnotation(node.callee);
+  }
+}
+
+function TemplateLiteral() {
+  return stringTypeAnnotation();
+}
+
+function UnaryExpression(node) {
+  const operator = node.operator;
+
+  if (operator === "void") {
+    return voidTypeAnnotation();
+  } else if (NUMBER_UNARY_OPERATORS.indexOf(operator) >= 0) {
+    return numberTypeAnnotation();
+  } else if (STRING_UNARY_OPERATORS.indexOf(operator) >= 0) {
+    return stringTypeAnnotation();
+  } else if (BOOLEAN_UNARY_OPERATORS.indexOf(operator) >= 0) {
+    return booleanTypeAnnotation();
+  }
+}
+
+function BinaryExpression(node) {
+  const operator = node.operator;
+
+  if (NUMBER_BINARY_OPERATORS.indexOf(operator) >= 0) {
+    return numberTypeAnnotation();
+  } else if (BOOLEAN_BINARY_OPERATORS.indexOf(operator) >= 0) {
+    return booleanTypeAnnotation();
+  } else if (operator === "+") {
+    const right = this.get("right");
+    const left = this.get("left");
+
+    if (left.isBaseType("number") && right.isBaseType("number")) {
+      return numberTypeAnnotation();
+    } else if (left.isBaseType("string") || right.isBaseType("string")) {
+      return stringTypeAnnotation();
+    }
+
+    return unionTypeAnnotation([stringTypeAnnotation(), numberTypeAnnotation()]);
+  }
+}
+
+function LogicalExpression() {
+  const argumentTypes = [this.get("left").getTypeAnnotation(), this.get("right").getTypeAnnotation()];
+
+  if (isTSTypeAnnotation(argumentTypes[0]) && createTSUnionType) {
+    return createTSUnionType(argumentTypes);
+  }
+
+  if (createFlowUnionType) {
+    return createFlowUnionType(argumentTypes);
+  }
+
+  return createUnionTypeAnnotation(argumentTypes);
+}
+
+function ConditionalExpression() {
+  const argumentTypes = [this.get("consequent").getTypeAnnotation(), this.get("alternate").getTypeAnnotation()];
+
+  if (isTSTypeAnnotation(argumentTypes[0]) && createTSUnionType) {
+    return createTSUnionType(argumentTypes);
+  }
+
+  if (createFlowUnionType) {
+    return createFlowUnionType(argumentTypes);
+  }
+
+  return createUnionTypeAnnotation(argumentTypes);
+}
+
+function SequenceExpression() {
+  return this.get("expressions").pop().getTypeAnnotation();
+}
+
+function ParenthesizedExpression() {
+  return this.get("expression").getTypeAnnotation();
+}
+
+function AssignmentExpression() {
+  return this.get("right").getTypeAnnotation();
+}
+
+function UpdateExpression(node) {
+  const operator = node.operator;
+
+  if (operator === "++" || operator === "--") {
+    return numberTypeAnnotation();
+  }
+}
+
+function StringLiteral() {
+  return stringTypeAnnotation();
+}
+
+function NumericLiteral() {
+  return numberTypeAnnotation();
+}
+
+function BooleanLiteral() {
+  return booleanTypeAnnotation();
+}
+
+function NullLiteral() {
+  return nullLiteralTypeAnnotation();
+}
+
+function RegExpLiteral() {
+  return genericTypeAnnotation(identifier("RegExp"));
+}
+
+function ObjectExpression() {
+  return genericTypeAnnotation(identifier("Object"));
+}
+
+function ArrayExpression() {
+  return genericTypeAnnotation(identifier("Array"));
+}
+
+function RestElement() {
+  return ArrayExpression();
+}
+
+RestElement.validParent = true;
+
+function Func() {
+  return genericTypeAnnotation(identifier("Function"));
+}
+
+const isArrayFrom = buildMatchMemberExpression("Array.from");
+const isObjectKeys = buildMatchMemberExpression("Object.keys");
+const isObjectValues = buildMatchMemberExpression("Object.values");
+const isObjectEntries = buildMatchMemberExpression("Object.entries");
+
+function CallExpression() {
+  const {
+    callee
+  } = this.node;
+
+  if (isObjectKeys(callee)) {
+    return arrayTypeAnnotation(stringTypeAnnotation());
+  } else if (isArrayFrom(callee) || isObjectValues(callee)) {
+    return arrayTypeAnnotation(anyTypeAnnotation());
+  } else if (isObjectEntries(callee)) {
+    return arrayTypeAnnotation(tupleTypeAnnotation([stringTypeAnnotation(), anyTypeAnnotation()]));
+  }
+
+  return resolveCall(this.get("callee"));
+}
+
+function TaggedTemplateExpression() {
+  return resolveCall(this.get("tag"));
+}
+
+function resolveCall(callee) {
+  callee = callee.resolve();
+
+  if (callee.isFunction()) {
+    if (callee.is("async")) {
+      if (callee.is("generator")) {
+        return genericTypeAnnotation(identifier("AsyncIterator"));
+      } else {
+        return genericTypeAnnotation(identifier("Promise"));
+      }
+    } else {
+      if (callee.node.returnType) {
+        return callee.node.returnType;
+      } else {}
+    }
+  }
+}
+\ No newline at end of file
diff --git a/chromium/third_party/node/node_modules/@babel/traverse/lib/path/introspection.js b/chromium/third_party/node/node_modules/@babel/traverse/lib/path/introspection.js
new file mode 100644
index 00000000000..65f98110bcf
--- /dev/null
+++ b/chromium/third_party/node/node_modules/@babel/traverse/lib/path/introspection.js
@@ -0,0 +1,436 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.matchesPattern = matchesPattern;
+exports.has = has;
+exports.isStatic = isStatic;
+exports.isnt = isnt;
+exports.equals = equals;
+exports.isNodeType = isNodeType;
+exports.canHaveVariableDeclarationOrExpression = canHaveVariableDeclarationOrExpression;
+exports.canSwapBetweenExpressionAndStatement = canSwapBetweenExpressionAndStatement;
+exports.isCompletionRecord = isCompletionRecord;
+exports.isStatementOrBlock = isStatementOrBlock;
+exports.referencesImport = referencesImport;
+exports.getSource = getSource;
+exports.willIMaybeExecuteBefore = willIMaybeExecuteBefore;
+exports._guessExecutionStatusRelativeTo = _guessExecutionStatusRelativeTo;
+exports._guessExecutionStatusRelativeToDifferentFunctions = _guessExecutionStatusRelativeToDifferentFunctions;
+exports.resolve = resolve;
+exports._resolve = _resolve;
+exports.isConstantExpression = isConstantExpression;
+exports.isInStrictMode = isInStrictMode;
+exports.is = void 0;
+
+var _t = require("@babel/types");
+
+const {
+  STATEMENT_OR_BLOCK_KEYS,
+  VISITOR_KEYS,
+  isBlockStatement,
+  isExpression,
+  isIdentifier,
+  isLiteral,
+  isStringLiteral,
+  isType,
+  matchesPattern: _matchesPattern
+} = _t;
+
+function matchesPattern(pattern, allowPartial) {
+  return _matchesPattern(this.node, pattern, allowPartial);
+}
+
+function has(key) {
+  const val = this.node && this.node[key];
+
+  if (val && Array.isArray(val)) {
+    return !!val.length;
+  } else {
+    return !!val;
+  }
+}
+
+function isStatic() {
+  return this.scope.isStatic(this.node);
+}
+
+const is = has;
+exports.is = is;
+
+function isnt(key) {
+  return !this.has(key);
+}
+
+function equals(key, value) {
+  return this.node[key] === value;
+}
+
+function isNodeType(type) {
+  return isType(this.type, type);
+}
+
+function canHaveVariableDeclarationOrExpression() {
+  return (this.key === "init" || this.key === "left") && this.parentPath.isFor();
+}
+
+function canSwapBetweenExpressionAndStatement(replacement) {
+  if (this.key !== "body" || !this.parentPath.isArrowFunctionExpression()) {
+    return false;
+  }
+
+  if (this.isExpression()) {
+    return isBlockStatement(replacement);
+  } else if (this.isBlockStatement()) {
+    return isExpression(replacement);
+  }
+
+  return false;
+}
+
+function isCompletionRecord(allowInsideFunction) {
+  let path = this;
+  let first = true;
+
+  do {
+    const container = path.container;
+
+    if (path.isFunction() && !first) {
+      return !!allowInsideFunction;
+    }
+
+    first = false;
+
+    if (Array.isArray(container) && path.key !== container.length - 1) {
+      return false;
+    }
+  } while ((path = path.parentPath) && !path.isProgram());
+
+  return true;
+}
+
+function isStatementOrBlock() {
+  if (this.parentPath.isLabeledStatement() || isBlockStatement(this.container)) {
+    return false;
+  } else {
+    return STATEMENT_OR_BLOCK_KEYS.includes(this.key);
+  }
+}
+
+function referencesImport(moduleSource, importName) {
+  if (!this.isReferencedIdentifier()) {
+    if ((this.isMemberExpression() || this.isOptionalMemberExpression()) && (this.node.computed ? isStringLiteral(this.node.property, {
+      value: importName
+    }) : this.node.property.name === importName)) {
+      const object = this.get("object");
+      return object.isReferencedIdentifier() && object.referencesImport(moduleSource, "*");
+    }
+
+    return false;
+  }
+
+  const binding = this.scope.getBinding(this.node.name);
+  if (!binding || binding.kind !== "module") return false;
+  const path = binding.path;
+  const parent = path.parentPath;
+  if (!parent.isImportDeclaration()) return false;
+
+  if (parent.node.source.value === moduleSource) {
+    if (!importName) return true;
+  } else {
+    return false;
+  }
+
+  if (path.isImportDefaultSpecifier() && importName === "default") {
+    return true;
+  }
+
+  if (path.isImportNamespaceSpecifier() && importName === "*") {
+    return true;
+  }
+
+  if (path.isImportSpecifier() && isIdentifier(path.node.imported, {
+    name: importName
+  })) {
+    return true;
+  }
+
+  return false;
+}
+
+function getSource() {
+  const node = this.node;
+
+  if (node.end) {
+    const code = this.hub.getCode();
+    if (code) return code.slice(node.start, node.end);
+  }
+
+  return "";
+}
+
+function willIMaybeExecuteBefore(target) {
+  return this._guessExecutionStatusRelativeTo(target) !== "after";
+}
+
+function getOuterFunction(path) {
+  return (path.scope.getFunctionParent() || path.scope.getProgramParent()).path;
+}
+
+function isExecutionUncertain(type, key) {
+  switch (type) {
+    case "LogicalExpression":
+      return key === "right";
+
+    case "ConditionalExpression":
+    case "IfStatement":
+      return key === "consequent" || key === "alternate";
+
+    case "WhileStatement":
+    case "DoWhileStatement":
+    case "ForInStatement":
+    case "ForOfStatement":
+      return key === "body";
+
+    case "ForStatement":
+      return key === "body" || key === "update";
+
+    case "SwitchStatement":
+      return key === "cases";
+
+    case "TryStatement":
+      return key === "handler";
+
+    case "AssignmentPattern":
+      return key === "right";
+
+    case "OptionalMemberExpression":
+      return key === "property";
+
+    case "OptionalCallExpression":
+      return key === "arguments";
+
+    default:
+      return false;
+  }
+}
+
+function isExecutionUncertainInList(paths, maxIndex) {
+  for (let i = 0; i < maxIndex; i++) {
+    const path = paths[i];
+
+    if (isExecutionUncertain(path.parent.type, path.parentKey)) {
+      return true;
+    }
+  }
+
+  return false;
+}
+
+function _guessExecutionStatusRelativeTo(target) {
+  const funcParent = {
+    this: getOuterFunction(this),
+    target: getOuterFunction(target)
+  };
+
+  if (funcParent.target.node !== funcParent.this.node) {
+    return this._guessExecutionStatusRelativeToDifferentFunctions(funcParent.target);
+  }
+
+  const paths = {
+    target: target.getAncestry(),
+    this: this.getAncestry()
+  };
+  if (paths.target.indexOf(this) >= 0) return "after";
+  if (paths.this.indexOf(target) >= 0) return "before";
+  let commonPath;
+  const commonIndex = {
+    target: 0,
+    this: 0
+  };
+
+  while (!commonPath && commonIndex.this < paths.this.length) {
+    const path = paths.this[commonIndex.this];
+    commonIndex.target = paths.target.indexOf(path);
+
+    if (commonIndex.target >= 0) {
+      commonPath = path;
+    } else {
+      commonIndex.this++;
+    }
+  }
+
+  if (!commonPath) {
+    throw new Error("Internal Babel error - The two compared nodes" + " don't appear to belong to the same program.");
+  }
+
+  if (isExecutionUncertainInList(paths.this, commonIndex.this - 1) || isExecutionUncertainInList(paths.target, commonIndex.target - 1)) {
+    return "unknown";
+  }
+
+  const divergence = {
+    this: paths.this[commonIndex.this - 1],
+    target: paths.target[commonIndex.target - 1]
+  };
+
+  if (divergence.target.listKey && divergence.this.listKey && divergence.target.container === divergence.this.container) {
+    return divergence.target.key > divergence.this.key ? "before" : "after";
+  }
+
+  const keys = VISITOR_KEYS[commonPath.type];
+  const keyPosition = {
+    this: keys.indexOf(divergence.this.parentKey),
+    target: keys.indexOf(divergence.target.parentKey)
+  };
+  return keyPosition.target > keyPosition.this ? "before" : "after";
+}
+
+const executionOrderCheckedNodes = new WeakSet();
+
+function _guessExecutionStatusRelativeToDifferentFunctions(target) {
+  if (!target.isFunctionDeclaration() || target.parentPath.isExportDeclaration()) {
+    return "unknown";
+  }
+
+  const binding = target.scope.getBinding(target.node.id.name);
+  if (!binding.references) return "before";
+  const referencePaths = binding.referencePaths;
+  let allStatus;
+
+  for (const path of referencePaths) {
+    const childOfFunction = !!path.find(path => path.node === target.node);
+    if (childOfFunction) continue;
+
+    if (path.key !== "callee" || !path.parentPath.isCallExpression()) {
+      return "unknown";
+    }
+
+    if (executionOrderCheckedNodes.has(path.node)) continue;
+    executionOrderCheckedNodes.add(path.node);
+
+    const status = this._guessExecutionStatusRelativeTo(path);
+
+    executionOrderCheckedNodes.delete(path.node);
+
+    if (allStatus && allStatus !== status) {
+      return "unknown";
+    } else {
+      allStatus = status;
+    }
+  }
+
+  return allStatus;
+}
+
+function resolve(dangerous, resolved) {
+  return this._resolve(dangerous, resolved) || this;
+}
+
+function _resolve(dangerous, resolved) {
+  if (resolved && resolved.indexOf(this) >= 0) return;
+  resolved = resolved || [];
+  resolved.push(this);
+
+  if (this.isVariableDeclarator()) {
+    if (this.get("id").isIdentifier()) {
+      return this.get("init").resolve(dangerous, resolved);
+    } else {}
+  } else if (this.isReferencedIdentifier()) {
+    const binding = this.scope.getBinding(this.node.name);
+    if (!binding) return;
+    if (!binding.constant) return;
+    if (binding.kind === "module") return;
+
+    if (binding.path !== this) {
+      const ret = binding.path.resolve(dangerous, resolved);
+      if (this.find(parent => parent.node === ret.node)) return;
+      return ret;
+    }
+  } else if (this.isTypeCastExpression()) {
+    return this.get("expression").resolve(dangerous, resolved);
+  } else if (dangerous && this.isMemberExpression()) {
+    const targetKey = this.toComputedKey();
+    if (!isLiteral(targetKey)) return;
+    const targetName = targetKey.value;
+    const target = this.get("object").resolve(dangerous, resolved);
+
+    if (target.isObjectExpression()) {
+      const props = target.get("properties");
+
+      for (const prop of props) {
+        if (!prop.isProperty()) continue;
+        const key = prop.get("key");
+        let match = prop.isnt("computed") && key.isIdentifier({
+          name: targetName
+        });
+        match = match || key.isLiteral({
+          value: targetName
+        });
+        if (match) return prop.get("value").resolve(dangerous, resolved);
+      }
+    } else if (target.isArrayExpression() && !isNaN(+targetName)) {
+      const elems = target.get("elements");
+      const elem = elems[targetName];
+      if (elem) return elem.resolve(dangerous, resolved);
+    }
+  }
+}
+
+function isConstantExpression() {
+  if (this.isIdentifier()) {
+    const binding = this.scope.getBinding(this.node.name);
+    if (!binding) return false;
+    return binding.constant;
+  }
+
+  if (this.isLiteral()) {
+    if (this.isRegExpLiteral()) {
+      return false;
+    }
+
+    if (this.isTemplateLiteral()) {
+      return this.get("expressions").every(expression => expression.isConstantExpression());
+    }
+
+    return true;
+  }
+
+  if (this.isUnaryExpression()) {
+    if (this.node.operator !== "void") {
+      return false;
+    }
+
+    return this.get("argument").isConstantExpression();
+  }
+
+  if (this.isBinaryExpression()) {
+    return this.get("left").isConstantExpression() && this.get("right").isConstantExpression();
+  }
+
+  return false;
+}
+
+function isInStrictMode() {
+  const start = this.isProgram() ? this : this.parentPath;
+  const strictParent = start.find(path => {
+    if (path.isProgram({
+      sourceType: "module"
+    })) return true;
+    if (path.isClass()) return true;
+    if (!path.isProgram() && !path.isFunction()) return false;
+
+    if (path.isArrowFunctionExpression() && !path.get("body").isBlockStatement()) {
+      return false;
+    }
+
+    const body = path.isFunction() ? path.node.body : path.node;
+
+    for (const directive of body.directives) {
+      if (directive.value.value === "use strict") {
+        return true;
+      }
+    }
+  });
+  return !!strictParent;
+}
+\ No newline at end of file
diff --git a/chromium/third_party/node/node_modules/@babel/traverse/lib/path/lib/hoister.js b/chromium/third_party/node/node_modules/@babel/traverse/lib/path/lib/hoister.js
new file mode 100644
index 00000000000..536a3409741
--- /dev/null
+++ b/chromium/third_party/node/node_modules/@babel/traverse/lib/path/lib/hoister.js
@@ -0,0 +1,206 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+var _t = require("@babel/types");
+
+var _t2 = _t;
+const {
+  react
+} = _t;
+const {
+  cloneNode,
+  jsxExpressionContainer,
+  variableDeclaration,
+  variableDeclarator
+} = _t2;
+const referenceVisitor = {
+  ReferencedIdentifier(path, state) {
+    if (path.isJSXIdentifier() && react.isCompatTag(path.node.name) && !path.parentPath.isJSXMemberExpression()) {
+      return;
+    }
+
+    if (path.node.name === "this") {
+      let scope = path.scope;
+
+      do {
+        if (scope.path.isFunction() && !scope.path.isArrowFunctionExpression()) {
+          break;
+        }
+      } while (scope = scope.parent);
+
+      if (scope) state.breakOnScopePaths.push(scope.path);
+    }
+
+    const binding = path.scope.getBinding(path.node.name);
+    if (!binding) return;
+
+    for (const violation of binding.constantViolations) {
+      if (violation.scope !== binding.path.scope) {
+        state.mutableBinding = true;
+        path.stop();
+        return;
+      }
+    }
+
+    if (binding !== state.scope.getBinding(path.node.name)) return;
+    state.bindings[path.node.name] = binding;
+  }
+
+};
+
+class PathHoister {
+  constructor(path, scope) {
+    this.breakOnScopePaths = void 0;
+    this.bindings = void 0;
+    this.mutableBinding = void 0;
+    this.scopes = void 0;
+    this.scope = void 0;
+    this.path = void 0;
+    this.attachAfter = void 0;
+    this.breakOnScopePaths = [];
+    this.bindings = {};
+    this.mutableBinding = false;
+    this.scopes = [];
+    this.scope = scope;
+    this.path = path;
+    this.attachAfter = false;
+  }
+
+  isCompatibleScope(scope) {
+    for (const key of Object.keys(this.bindings)) {
+      const binding = this.bindings[key];
+
+      if (!scope.bindingIdentifierEquals(key, binding.identifier)) {
+        return false;
+      }
+    }
+
+    return true;
+  }
+
+  getCompatibleScopes() {
+    let scope = this.path.scope;
+
+    do {
+      if (this.isCompatibleScope(scope)) {
+        this.scopes.push(scope);
+      } else {
+        break;
+      }
+
+      if (this.breakOnScopePaths.indexOf(scope.path) >= 0) {
+        break;
+      }
+    } while (scope = scope.parent);
+  }
+
+  getAttachmentPath() {
+    let path = this._getAttachmentPath();
+
+    if (!path) return;
+    let targetScope = path.scope;
+
+    if (targetScope.path === path) {
+      targetScope = path.scope.parent;
+    }
+
+    if (targetScope.path.isProgram() || targetScope.path.isFunction()) {
+      for (const name of Object.keys(this.bindings)) {
+        if (!targetScope.hasOwnBinding(name)) continue;
+        const binding = this.bindings[name];
+
+        if (binding.kind === "param" || binding.path.parentKey === "params") {
+          continue;
+        }
+
+        const bindingParentPath = this.getAttachmentParentForPath(binding.path);
+
+        if (bindingParentPath.key >= path.key) {
+          this.attachAfter = true;
+          path = binding.path;
+
+          for (const violationPath of binding.constantViolations) {
+            if (this.getAttachmentParentForPath(violationPath).key > path.key) {
+              path = violationPath;
+            }
+          }
+        }
+      }
+    }
+
+    return path;
+  }
+
+  _getAttachmentPath() {
+    const scopes = this.scopes;
+    const scope = scopes.pop();
+    if (!scope) return;
+
+    if (scope.path.isFunction()) {
+      if (this.hasOwnParamBindings(scope)) {
+        if (this.scope === scope) return;
+        const bodies = scope.path.get("body").get("body");
+
+        for (let i = 0; i < bodies.length; i++) {
+          if (bodies[i].node._blockHoist) continue;
+          return bodies[i];
+        }
+      } else {
+        return this.getNextScopeAttachmentParent();
+      }
+    } else if (scope.path.isProgram()) {
+      return this.getNextScopeAttachmentParent();
+    }
+  }
+
+  getNextScopeAttachmentParent() {
+    const scope = this.scopes.pop();
+    if (scope) return this.getAttachmentParentForPath(scope.path);
+  }
+
+  getAttachmentParentForPath(path) {
+    do {
+      if (!path.parentPath || Array.isArray(path.container) && path.isStatement()) {
+        return path;
+      }
+    } while (path = path.parentPath);
+  }
+
+  hasOwnParamBindings(scope) {
+    for (const name of Object.keys(this.bindings)) {
+      if (!scope.hasOwnBinding(name)) continue;
+      const binding = this.bindings[name];
+      if (binding.kind === "param" && binding.constant) return true;
+    }
+
+    return false;
+  }
+
+  run() {
+    this.path.traverse(referenceVisitor, this);
+    if (this.mutableBinding) return;
+    this.getCompatibleScopes();
+    const attachTo = this.getAttachmentPath();
+    if (!attachTo) return;
+    if (attachTo.getFunctionParent() === this.path.getFunctionParent()) return;
+    let uid = attachTo.scope.generateUidIdentifier("ref");
+    const declarator = variableDeclarator(uid, this.path.node);
+    const insertFn = this.attachAfter ? "insertAfter" : "insertBefore";
+    const [attached] = attachTo[insertFn]([attachTo.isVariableDeclarator() ? declarator : variableDeclaration("var", [declarator])]);
+    const parent = this.path.parentPath;
+
+    if (parent.isJSXElement() && this.path.container === parent.node.children) {
+      uid = jsxExpressionContainer(uid);
+    }
+
+    this.path.replaceWith(cloneNode(uid));
+    return attachTo.isVariableDeclarator() ? attached.get("init") : attached.get("declarations.0.init");
+  }
+
+}
+
+exports.default = PathHoister;
+\ No newline at end of file
diff --git a/chromium/third_party/node/node_modules/@babel/traverse/lib/path/lib/removal-hooks.js b/chromium/third_party/node/node_modules/@babel/traverse/lib/path/lib/removal-hooks.js
new file mode 100644
index 00000000000..23ec8fe6d7e
--- /dev/null
+++ b/chromium/third_party/node/node_modules/@babel/traverse/lib/path/lib/removal-hooks.js
@@ -0,0 +1,38 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.hooks = void 0;
+const hooks = [function (self, parent) {
+  const removeParent = self.key === "test" && (parent.isWhile() || parent.isSwitchCase()) || self.key === "declaration" && parent.isExportDeclaration() || self.key === "body" && parent.isLabeledStatement() || self.listKey === "declarations" && parent.isVariableDeclaration() && parent.node.declarations.length === 1 || self.key === "expression" && parent.isExpressionStatement();
+
+  if (removeParent) {
+    parent.remove();
+    return true;
+  }
+}, function (self, parent) {
+  if (parent.isSequenceExpression() && parent.node.expressions.length === 1) {
+    parent.replaceWith(parent.node.expressions[0]);
+    return true;
+  }
+}, function (self, parent) {
+  if (parent.isBinary()) {
+    if (self.key === "left") {
+      parent.replaceWith(parent.node.right);
+    } else {
+      parent.replaceWith(parent.node.left);
+    }
+
+    return true;
+  }
+}, function (self, parent) {
+  if (parent.isIfStatement() && (self.key === "consequent" || self.key === "alternate") || self.key === "body" && (parent.isLoop() || parent.isArrowFunctionExpression())) {
+    self.replaceWith({
+      type: "BlockStatement",
+      body: []
+    });
+    return true;
+  }
+}];
+exports.hooks = hooks;
+\ No newline at end of file
diff --git a/chromium/third_party/node/node_modules/@babel/traverse/lib/path/lib/virtual-types.js b/chromium/third_party/node/node_modules/@babel/traverse/lib/path/lib/virtual-types.js
new file mode 100644
index 00000000000..7dbda0b7ad8
--- /dev/null
+++ b/chromium/third_party/node/node_modules/@babel/traverse/lib/path/lib/virtual-types.js
@@ -0,0 +1,230 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.ForAwaitStatement = exports.NumericLiteralTypeAnnotation = exports.ExistentialTypeParam = exports.SpreadProperty = exports.RestProperty = exports.Flow = exports.Pure = exports.Generated = exports.User = exports.Var = exports.BlockScoped = exports.Referenced = exports.Scope = exports.Expression = exports.Statement = exports.BindingIdentifier = exports.ReferencedMemberExpression = exports.ReferencedIdentifier = void 0;
+
+var _t = require("@babel/types");
+
+const {
+  isBinding,
+  isBlockScoped,
+  isExportDeclaration,
+  isExpression,
+  isFlow,
+  isForStatement,
+  isForXStatement,
+  isIdentifier,
+  isImportDeclaration,
+  isImportSpecifier,
+  isJSXIdentifier,
+  isJSXMemberExpression,
+  isMemberExpression,
+  isReferenced,
+  isScope,
+  isStatement,
+  isVar,
+  isVariableDeclaration,
+  react
+} = _t;
+const {
+  isCompatTag
+} = react;
+const ReferencedIdentifier = {
+  types: ["Identifier", "JSXIdentifier"],
+
+  checkPath(path, opts) {
+    const {
+      node,
+      parent
+    } = path;
+
+    if (!isIdentifier(node, opts) && !isJSXMemberExpression(parent, opts)) {
+      if (isJSXIdentifier(node, opts)) {
+        if (isCompatTag(node.name)) return false;
+      } else {
+        return false;
+      }
+    }
+
+    return isReferenced(node, parent, path.parentPath.parent);
+  }
+
+};
+exports.ReferencedIdentifier = ReferencedIdentifier;
+const ReferencedMemberExpression = {
+  types: ["MemberExpression"],
+
+  checkPath({
+    node,
+    parent
+  }) {
+    return isMemberExpression(node) && isReferenced(node, parent);
+  }
+
+};
+exports.ReferencedMemberExpression = ReferencedMemberExpression;
+const BindingIdentifier = {
+  types: ["Identifier"],
+
+  checkPath(path) {
+    const {
+      node,
+      parent
+    } = path;
+    const grandparent = path.parentPath.parent;
+    return isIdentifier(node) && isBinding(node, parent, grandparent);
+  }
+
+};
+exports.BindingIdentifier = BindingIdentifier;
+const Statement = {
+  types: ["Statement"],
+
+  checkPath({
+    node,
+    parent
+  }) {
+    if (isStatement(node)) {
+      if (isVariableDeclaration(node)) {
+        if (isForXStatement(parent, {
+          left: node
+        })) return false;
+        if (isForStatement(parent, {
+          init: node
+        })) return false;
+      }
+
+      return true;
+    } else {
+      return false;
+    }
+  }
+
+};
+exports.Statement = Statement;
+const Expression = {
+  types: ["Expression"],
+
+  checkPath(path) {
+    if (path.isIdentifier()) {
+      return path.isReferencedIdentifier();
+    } else {
+      return isExpression(path.node);
+    }
+  }
+
+};
+exports.Expression = Expression;
+const Scope = {
+  types: ["Scopable", "Pattern"],
+
+  checkPath(path) {
+    return isScope(path.node, path.parent);
+  }
+
+};
+exports.Scope = Scope;
+const Referenced = {
+  checkPath(path) {
+    return isReferenced(path.node, path.parent);
+  }
+
+};
+exports.Referenced = Referenced;
+const BlockScoped = {
+  checkPath(path) {
+    return isBlockScoped(path.node);
+  }
+
+};
+exports.BlockScoped = BlockScoped;
+const Var = {
+  types: ["VariableDeclaration"],
+
+  checkPath(path) {
+    return isVar(path.node);
+  }
+
+};
+exports.Var = Var;
+const User = {
+  checkPath(path) {
+    return path.node && !!path.node.loc;
+  }
+
+};
+exports.User = User;
+const Generated = {
+  checkPath(path) {
+    return !path.isUser();
+  }
+
+};
+exports.Generated = Generated;
+const Pure = {
+  checkPath(path, opts) {
+    return path.scope.isPure(path.node, opts);
+  }
+
+};
+exports.Pure = Pure;
+const Flow = {
+  types: ["Flow", "ImportDeclaration", "ExportDeclaration", "ImportSpecifier"],
+
+  checkPath({
+    node
+  }) {
+    if (isFlow(node)) {
+      return true;
+    } else if (isImportDeclaration(node)) {
+      return node.importKind === "type" || node.importKind === "typeof";
+    } else if (isExportDeclaration(node)) {
+      return node.exportKind === "type";
+    } else if (isImportSpecifier(node)) {
+      return node.importKind === "type" || node.importKind === "typeof";
+    } else {
+      return false;
+    }
+  }
+
+};
+exports.Flow = Flow;
+const RestProperty = {
+  types: ["RestElement"],
+
+  checkPath(path) {
+    return path.parentPath && path.parentPath.isObjectPattern();
+  }
+
+};
+exports.RestProperty = RestProperty;
+const SpreadProperty = {
+  types: ["RestElement"],
+
+  checkPath(path) {
+    return path.parentPath && path.parentPath.isObjectExpression();
+  }
+
+};
+exports.SpreadProperty = SpreadProperty;
+const ExistentialTypeParam = {
+  types: ["ExistsTypeAnnotation"]
+};
+exports.ExistentialTypeParam = ExistentialTypeParam;
+const NumericLiteralTypeAnnotation = {
+  types: ["NumberLiteralTypeAnnotation"]
+};
+exports.NumericLiteralTypeAnnotation = NumericLiteralTypeAnnotation;
+const ForAwaitStatement = {
+  types: ["ForOfStatement"],
+
+  checkPath({
+    node
+  }) {
+    return node.await === true;
+  }
+
+};
+exports.ForAwaitStatement = ForAwaitStatement;
+\ No newline at end of file
diff --git a/chromium/third_party/node/node_modules/@babel/traverse/lib/path/modification.js b/chromium/third_party/node/node_modules/@babel/traverse/lib/path/modification.js
new file mode 100644
index 00000000000..8b8c08925f8
--- /dev/null
+++ b/chromium/third_party/node/node_modules/@babel/traverse/lib/path/modification.js
@@ -0,0 +1,232 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.insertBefore = insertBefore;
+exports._containerInsert = _containerInsert;
+exports._containerInsertBefore = _containerInsertBefore;
+exports._containerInsertAfter = _containerInsertAfter;
+exports.insertAfter = insertAfter;
+exports.updateSiblingKeys = updateSiblingKeys;
+exports._verifyNodeList = _verifyNodeList;
+exports.unshiftContainer = unshiftContainer;
+exports.pushContainer = pushContainer;
+exports.hoist = hoist;
+
+var _cache = require("../cache");
+
+var _hoister = require("./lib/hoister");
+
+var _index = require("./index");
+
+var _t = require("@babel/types");
+
+const {
+  arrowFunctionExpression,
+  assertExpression,
+  assignmentExpression,
+  blockStatement,
+  callExpression,
+  cloneNode,
+  expressionStatement,
+  isExpression
+} = _t;
+
+function insertBefore(nodes_) {
+  this._assertUnremoved();
+
+  const nodes = this._verifyNodeList(nodes_);
+
+  const {
+    parentPath
+  } = this;
+
+  if (parentPath.isExpressionStatement() || parentPath.isLabeledStatement() || parentPath.isExportNamedDeclaration() || parentPath.isExportDefaultDeclaration() && this.isDeclaration()) {
+    return parentPath.insertBefore(nodes);
+  } else if (this.isNodeType("Expression") && !this.isJSXElement() || parentPath.isForStatement() && this.key === "init") {
+    if (this.node) nodes.push(this.node);
+    return this.replaceExpressionWithStatements(nodes);
+  } else if (Array.isArray(this.container)) {
+    return this._containerInsertBefore(nodes);
+  } else if (this.isStatementOrBlock()) {
+    const node = this.node;
+    const shouldInsertCurrentNode = node && (!this.isExpressionStatement() || node.expression != null);
+    this.replaceWith(blockStatement(shouldInsertCurrentNode ? [node] : []));
+    return this.unshiftContainer("body", nodes);
+  } else {
+    throw new Error("We don't know what to do with this node type. " + "We were previously a Statement but we can't fit in here?");
+  }
+}
+
+function _containerInsert(from, nodes) {
+  this.updateSiblingKeys(from, nodes.length);
+  const paths = [];
+  this.container.splice(from, 0, ...nodes);
+
+  for (let i = 0; i < nodes.length; i++) {
+    const to = from + i;
+    const path = this.getSibling(to);
+    paths.push(path);
+
+    if (this.context && this.context.queue) {
+      path.pushContext(this.context);
+    }
+  }
+
+  const contexts = this._getQueueContexts();
+
+  for (const path of paths) {
+    path.setScope();
+    path.debug("Inserted.");
+
+    for (const context of contexts) {
+      context.maybeQueue(path, true);
+    }
+  }
+
+  return paths;
+}
+
+function _containerInsertBefore(nodes) {
+  return this._containerInsert(this.key, nodes);
+}
+
+function _containerInsertAfter(nodes) {
+  return this._containerInsert(this.key + 1, nodes);
+}
+
+function insertAfter(nodes_) {
+  this._assertUnremoved();
+
+  const nodes = this._verifyNodeList(nodes_);
+
+  const {
+    parentPath
+  } = this;
+
+  if (parentPath.isExpressionStatement() || parentPath.isLabeledStatement() || parentPath.isExportNamedDeclaration() || parentPath.isExportDefaultDeclaration() && this.isDeclaration()) {
+    return parentPath.insertAfter(nodes.map(node => {
+      return isExpression(node) ? expressionStatement(node) : node;
+    }));
+  } else if (this.isNodeType("Expression") && !this.isJSXElement() && !parentPath.isJSXElement() || parentPath.isForStatement() && this.key === "init") {
+    if (this.node) {
+      const node = this.node;
+      let {
+        scope
+      } = this;
+
+      if (scope.path.isPattern()) {
+        assertExpression(node);
+        this.replaceWith(callExpression(arrowFunctionExpression([], node), []));
+        this.get("callee.body").insertAfter(nodes);
+        return [this];
+      }
+
+      if (parentPath.isMethod({
+        computed: true,
+        key: node
+      })) {
+        scope = scope.parent;
+      }
+
+      const temp = scope.generateDeclaredUidIdentifier();
+      nodes.unshift(expressionStatement(assignmentExpression("=", cloneNode(temp), node)));
+      nodes.push(expressionStatement(cloneNode(temp)));
+    }
+
+    return this.replaceExpressionWithStatements(nodes);
+  } else if (Array.isArray(this.container)) {
+    return this._containerInsertAfter(nodes);
+  } else if (this.isStatementOrBlock()) {
+    const node = this.node;
+    const shouldInsertCurrentNode = node && (!this.isExpressionStatement() || node.expression != null);
+    this.replaceWith(blockStatement(shouldInsertCurrentNode ? [node] : []));
+    return this.pushContainer("body", nodes);
+  } else {
+    throw new Error("We don't know what to do with this node type. " + "We were previously a Statement but we can't fit in here?");
+  }
+}
+
+function updateSiblingKeys(fromIndex, incrementBy) {
+  if (!this.parent) return;
+
+  const paths = _cache.path.get(this.parent);
+
+  for (const [, path] of paths) {
+    if (path.key >= fromIndex) {
+      path.key += incrementBy;
+    }
+  }
+}
+
+function _verifyNodeList(nodes) {
+  if (!nodes) {
+    return [];
+  }
+
+  if (!Array.isArray(nodes)) {
+    nodes = [nodes];
+  }
+
+  for (let i = 0; i < nodes.length; i++) {
+    const node = nodes[i];
+    let msg;
+
+    if (!node) {
+      msg = "has falsy node";
+    } else if (typeof node !== "object") {
+      msg = "contains a non-object node";
+    } else if (!node.type) {
+      msg = "without a type";
+    } else if (node instanceof _index.default) {
+      msg = "has a NodePath when it expected a raw object";
+    }
+
+    if (msg) {
+      const type = Array.isArray(node) ? "array" : typeof node;
+      throw new Error(`Node list ${msg} with the index of ${i} and type of ${type}`);
+    }
+  }
+
+  return nodes;
+}
+
+function unshiftContainer(listKey, nodes) {
+  this._assertUnremoved();
+
+  nodes = this._verifyNodeList(nodes);
+
+  const path = _index.default.get({
+    parentPath: this,
+    parent: this.node,
+    container: this.node[listKey],
+    listKey,
+    key: 0
+  }).setContext(this.context);
+
+  return path._containerInsertBefore(nodes);
+}
+
+function pushContainer(listKey, nodes) {
+  this._assertUnremoved();
+
+  const verifiedNodes = this._verifyNodeList(nodes);
+
+  const container = this.node[listKey];
+
+  const path = _index.default.get({
+    parentPath: this,
+    parent: this.node,
+    container: container,
+    listKey,
+    key: container.length
+  }).setContext(this.context);
+
+  return path.replaceWithMultiple(verifiedNodes);
+}
+
+function hoist(scope = this.scope) {
+  const hoister = new _hoister.default(this, scope);
+  return hoister.run();
+}
+\ No newline at end of file
diff --git a/chromium/third_party/node/node_modules/@babel/traverse/lib/path/removal.js b/chromium/third_party/node/node_modules/@babel/traverse/lib/path/removal.js
new file mode 100644
index 00000000000..7f787c22c77
--- /dev/null
+++ b/chromium/third_party/node/node_modules/@babel/traverse/lib/path/removal.js
@@ -0,0 +1,73 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.remove = remove;
+exports._removeFromScope = _removeFromScope;
+exports._callRemovalHooks = _callRemovalHooks;
+exports._remove = _remove;
+exports._markRemoved = _markRemoved;
+exports._assertUnremoved = _assertUnremoved;
+
+var _removalHooks = require("./lib/removal-hooks");
+
+var _cache = require("../cache");
+
+var _index = require("./index");
+
+function remove() {
+  var _this$opts;
+
+  this._assertUnremoved();
+
+  this.resync();
+
+  if (!((_this$opts = this.opts) != null && _this$opts.noScope)) {
+    this._removeFromScope();
+  }
+
+  if (this._callRemovalHooks()) {
+    this._markRemoved();
+
+    return;
+  }
+
+  this.shareCommentsWithSiblings();
+
+  this._remove();
+
+  this._markRemoved();
+}
+
+function _removeFromScope() {
+  const bindings = this.getBindingIdentifiers();
+  Object.keys(bindings).forEach(name => this.scope.removeBinding(name));
+}
+
+function _callRemovalHooks() {
+  for (const fn of _removalHooks.hooks) {
+    if (fn(this, this.parentPath)) return true;
+  }
+}
+
+function _remove() {
+  if (Array.isArray(this.container)) {
+    this.container.splice(this.key, 1);
+    this.updateSiblingKeys(this.key, -1);
+  } else {
+    this._replaceWith(null);
+  }
+}
+
+function _markRemoved() {
+  this._traverseFlags |= _index.SHOULD_SKIP | _index.REMOVED;
+  if (this.parent) _cache.path.get(this.parent).delete(this.node);
+  this.node = null;
+}
+
+function _assertUnremoved() {
+  if (this.removed) {
+    throw this.buildCodeFrameError("NodePath has been removed so is read-only.");
+  }
+}
+\ No newline at end of file
diff --git a/chromium/third_party/node/node_modules/@babel/traverse/lib/path/replacement.js b/chromium/third_party/node/node_modules/@babel/traverse/lib/path/replacement.js
new file mode 100644
index 00000000000..ddd88baf979
--- /dev/null
+++ b/chromium/third_party/node/node_modules/@babel/traverse/lib/path/replacement.js
@@ -0,0 +1,260 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.replaceWithMultiple = replaceWithMultiple;
+exports.replaceWithSourceString = replaceWithSourceString;
+exports.replaceWith = replaceWith;
+exports._replaceWith = _replaceWith;
+exports.replaceExpressionWithStatements = replaceExpressionWithStatements;
+exports.replaceInline = replaceInline;
+
+var _codeFrame = require("@babel/code-frame");
+
+var _index = require("../index");
+
+var _index2 = require("./index");
+
+var _cache = require("../cache");
+
+var _parser = require("@babel/parser");
+
+var _t = require("@babel/types");
+
+var _helperHoistVariables = require("@babel/helper-hoist-variables");
+
+const {
+  FUNCTION_TYPES,
+  arrowFunctionExpression,
+  assignmentExpression,
+  awaitExpression,
+  blockStatement,
+  callExpression,
+  cloneNode,
+  expressionStatement,
+  identifier,
+  inheritLeadingComments,
+  inheritTrailingComments,
+  inheritsComments,
+  isExpression,
+  isProgram,
+  isStatement,
+  removeComments,
+  returnStatement,
+  toSequenceExpression,
+  validate,
+  yieldExpression
+} = _t;
+
+function replaceWithMultiple(nodes) {
+  var _pathCache$get;
+
+  this.resync();
+  nodes = this._verifyNodeList(nodes);
+  inheritLeadingComments(nodes[0], this.node);
+  inheritTrailingComments(nodes[nodes.length - 1], this.node);
+  (_pathCache$get = _cache.path.get(this.parent)) == null ? void 0 : _pathCache$get.delete(this.node);
+  this.node = this.container[this.key] = null;
+  const paths = this.insertAfter(nodes);
+
+  if (this.node) {
+    this.requeue();
+  } else {
+    this.remove();
+  }
+
+  return paths;
+}
+
+function replaceWithSourceString(replacement) {
+  this.resync();
+
+  try {
+    replacement = `(${replacement})`;
+    replacement = (0, _parser.parse)(replacement);
+  } catch (err) {
+    const loc = err.loc;
+
+    if (loc) {
+      err.message += " - make sure this is an expression.\n" + (0, _codeFrame.codeFrameColumns)(replacement, {
+        start: {
+          line: loc.line,
+          column: loc.column + 1
+        }
+      });
+      err.code = "BABEL_REPLACE_SOURCE_ERROR";
+    }
+
+    throw err;
+  }
+
+  replacement = replacement.program.body[0].expression;
+
+  _index.default.removeProperties(replacement);
+
+  return this.replaceWith(replacement);
+}
+
+function replaceWith(replacement) {
+  this.resync();
+
+  if (this.removed) {
+    throw new Error("You can't replace this node, we've already removed it");
+  }
+
+  if (replacement instanceof _index2.default) {
+    replacement = replacement.node;
+  }
+
+  if (!replacement) {
+    throw new Error("You passed `path.replaceWith()` a falsy node, use `path.remove()` instead");
+  }
+
+  if (this.node === replacement) {
+    return [this];
+  }
+
+  if (this.isProgram() && !isProgram(replacement)) {
+    throw new Error("You can only replace a Program root node with another Program node");
+  }
+
+  if (Array.isArray(replacement)) {
+    throw new Error("Don't use `path.replaceWith()` with an array of nodes, use `path.replaceWithMultiple()`");
+  }
+
+  if (typeof replacement === "string") {
+    throw new Error("Don't use `path.replaceWith()` with a source string, use `path.replaceWithSourceString()`");
+  }
+
+  let nodePath = "";
+
+  if (this.isNodeType("Statement") && isExpression(replacement)) {
+    if (!this.canHaveVariableDeclarationOrExpression() && !this.canSwapBetweenExpressionAndStatement(replacement) && !this.parentPath.isExportDefaultDeclaration()) {
+      replacement = expressionStatement(replacement);
+      nodePath = "expression";
+    }
+  }
+
+  if (this.isNodeType("Expression") && isStatement(replacement)) {
+    if (!this.canHaveVariableDeclarationOrExpression() && !this.canSwapBetweenExpressionAndStatement(replacement)) {
+      return this.replaceExpressionWithStatements([replacement]);
+    }
+  }
+
+  const oldNode = this.node;
+
+  if (oldNode) {
+    inheritsComments(replacement, oldNode);
+    removeComments(oldNode);
+  }
+
+  this._replaceWith(replacement);
+
+  this.type = replacement.type;
+  this.setScope();
+  this.requeue();
+  return [nodePath ? this.get(nodePath) : this];
+}
+
+function _replaceWith(node) {
+  var _pathCache$get2;
+
+  if (!this.container) {
+    throw new ReferenceError("Container is falsy");
+  }
+
+  if (this.inList) {
+    validate(this.parent, this.key, [node]);
+  } else {
+    validate(this.parent, this.key, node);
+  }
+
+  this.debug(`Replace with ${node == null ? void 0 : node.type}`);
+  (_pathCache$get2 = _cache.path.get(this.parent)) == null ? void 0 : _pathCache$get2.set(node, this).delete(this.node);
+  this.node = this.container[this.key] = node;
+}
+
+function replaceExpressionWithStatements(nodes) {
+  this.resync();
+  const nodesAsSequenceExpression = toSequenceExpression(nodes, this.scope);
+
+  if (nodesAsSequenceExpression) {
+    return this.replaceWith(nodesAsSequenceExpression)[0].get("expressions");
+  }
+
+  const functionParent = this.getFunctionParent();
+  const isParentAsync = functionParent == null ? void 0 : functionParent.is("async");
+  const isParentGenerator = functionParent == null ? void 0 : functionParent.is("generator");
+  const container = arrowFunctionExpression([], blockStatement(nodes));
+  this.replaceWith(callExpression(container, []));
+  const callee = this.get("callee");
+  (0, _helperHoistVariables.default)(callee.get("body"), id => {
+    this.scope.push({
+      id
+    });
+  }, "var");
+  const completionRecords = this.get("callee").getCompletionRecords();
+
+  for (const path of completionRecords) {
+    if (!path.isExpressionStatement()) continue;
+    const loop = path.findParent(path => path.isLoop());
+
+    if (loop) {
+      let uid = loop.getData("expressionReplacementReturnUid");
+
+      if (!uid) {
+        uid = callee.scope.generateDeclaredUidIdentifier("ret");
+        callee.get("body").pushContainer("body", returnStatement(cloneNode(uid)));
+        loop.setData("expressionReplacementReturnUid", uid);
+      } else {
+        uid = identifier(uid.name);
+      }
+
+      path.get("expression").replaceWith(assignmentExpression("=", cloneNode(uid), path.node.expression));
+    } else {
+      path.replaceWith(returnStatement(path.node.expression));
+    }
+  }
+
+  callee.arrowFunctionToExpression();
+  const newCallee = callee;
+
+  const needToAwaitFunction = isParentAsync && _index.default.hasType(this.get("callee.body").node, "AwaitExpression", FUNCTION_TYPES);
+
+  const needToYieldFunction = isParentGenerator && _index.default.hasType(this.get("callee.body").node, "YieldExpression", FUNCTION_TYPES);
+
+  if (needToAwaitFunction) {
+    newCallee.set("async", true);
+
+    if (!needToYieldFunction) {
+      this.replaceWith(awaitExpression(this.node));
+    }
+  }
+
+  if (needToYieldFunction) {
+    newCallee.set("generator", true);
+    this.replaceWith(yieldExpression(this.node, true));
+  }
+
+  return newCallee.get("body.body");
+}
+
+function replaceInline(nodes) {
+  this.resync();
+
+  if (Array.isArray(nodes)) {
+    if (Array.isArray(this.container)) {
+      nodes = this._verifyNodeList(nodes);
+
+      const paths = this._containerInsertAfter(nodes);
+
+      this.remove();
+      return paths;
+    } else {
+      return this.replaceWithMultiple(nodes);
+    }
+  } else {
+    return this.replaceWith(nodes);
+  }
+}
+\ No newline at end of file
diff --git a/chromium/third_party/node/node_modules/@babel/traverse/lib/scope/binding.js b/chromium/third_party/node/node_modules/@babel/traverse/lib/scope/binding.js
new file mode 100644
index 00000000000..16911ef21c0
--- /dev/null
+++ b/chromium/third_party/node/node_modules/@babel/traverse/lib/scope/binding.js
@@ -0,0 +1,75 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+class Binding {
+  constructor({
+    identifier,
+    scope,
+    path,
+    kind
+  }) {
+    this.identifier = void 0;
+    this.scope = void 0;
+    this.path = void 0;
+    this.kind = void 0;
+    this.constantViolations = [];
+    this.constant = true;
+    this.referencePaths = [];
+    this.referenced = false;
+    this.references = 0;
+    this.identifier = identifier;
+    this.scope = scope;
+    this.path = path;
+    this.kind = kind;
+    this.clearValue();
+  }
+
+  deoptValue() {
+    this.clearValue();
+    this.hasDeoptedValue = true;
+  }
+
+  setValue(value) {
+    if (this.hasDeoptedValue) return;
+    this.hasValue = true;
+    this.value = value;
+  }
+
+  clearValue() {
+    this.hasDeoptedValue = false;
+    this.hasValue = false;
+    this.value = null;
+  }
+
+  reassign(path) {
+    this.constant = false;
+
+    if (this.constantViolations.indexOf(path) !== -1) {
+      return;
+    }
+
+    this.constantViolations.push(path);
+  }
+
+  reference(path) {
+    if (this.referencePaths.indexOf(path) !== -1) {
+      return;
+    }
+
+    this.referenced = true;
+    this.references++;
+    this.referencePaths.push(path);
+  }
+
+  dereference() {
+    this.references--;
+    this.referenced = !!this.references;
+  }
+
+}
+
+exports.default = Binding;
+\ No newline at end of file
diff --git a/chromium/third_party/node/node_modules/@babel/traverse/lib/scope/index.js b/chromium/third_party/node/node_modules/@babel/traverse/lib/scope/index.js
new file mode 100644
index 00000000000..8ab588a31d3
--- /dev/null
+++ b/chromium/third_party/node/node_modules/@babel/traverse/lib/scope/index.js
@@ -0,0 +1,1015 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+var _renamer = require("./lib/renamer");
+
+var _index = require("../index");
+
+var _binding = require("./binding");
+
+var _globals = require("globals");
+
+var _t = require("@babel/types");
+
+var _cache = require("../cache");
+
+const {
+  NOT_LOCAL_BINDING,
+  callExpression,
+  cloneNode,
+  getBindingIdentifiers,
+  identifier,
+  isArrayExpression,
+  isBinary,
+  isClass,
+  isClassBody,
+  isClassDeclaration,
+  isExportAllDeclaration,
+  isExportDefaultDeclaration,
+  isExportNamedDeclaration,
+  isFunctionDeclaration,
+  isIdentifier,
+  isImportDeclaration,
+  isLiteral,
+  isMethod,
+  isModuleDeclaration,
+  isModuleSpecifier,
+  isObjectExpression,
+  isProperty,
+  isPureish,
+  isSuper,
+  isTaggedTemplateExpression,
+  isTemplateLiteral,
+  isThisExpression,
+  isUnaryExpression,
+  isVariableDeclaration,
+  matchesPattern,
+  memberExpression,
+  numericLiteral,
+  toIdentifier,
+  unaryExpression,
+  variableDeclaration,
+  variableDeclarator
+} = _t;
+
+function gatherNodeParts(node, parts) {
+  switch (node == null ? void 0 : node.type) {
+    default:
+      if (isModuleDeclaration(node)) {
+        if ((isExportAllDeclaration(node) || isExportNamedDeclaration(node) || isImportDeclaration(node)) && node.source) {
+          gatherNodeParts(node.source, parts);
+        } else if ((isExportNamedDeclaration(node) || isImportDeclaration(node)) && node.specifiers && node.specifiers.length) {
+          for (const e of node.specifiers) gatherNodeParts(e, parts);
+        } else if ((isExportDefaultDeclaration(node) || isExportNamedDeclaration(node)) && node.declaration) {
+          gatherNodeParts(node.declaration, parts);
+        }
+      } else if (isModuleSpecifier(node)) {
+        gatherNodeParts(node.local, parts);
+      } else if (isLiteral(node)) {
+        parts.push(node.value);
+      }
+
+      break;
+
+    case "MemberExpression":
+    case "OptionalMemberExpression":
+    case "JSXMemberExpression":
+      gatherNodeParts(node.object, parts);
+      gatherNodeParts(node.property, parts);
+      break;
+
+    case "Identifier":
+    case "JSXIdentifier":
+      parts.push(node.name);
+      break;
+
+    case "CallExpression":
+    case "OptionalCallExpression":
+    case "NewExpression":
+      gatherNodeParts(node.callee, parts);
+      break;
+
+    case "ObjectExpression":
+    case "ObjectPattern":
+      for (const e of node.properties) {
+        gatherNodeParts(e, parts);
+      }
+
+      break;
+
+    case "SpreadElement":
+    case "RestElement":
+      gatherNodeParts(node.argument, parts);
+      break;
+
+    case "ObjectProperty":
+    case "ObjectMethod":
+    case "ClassProperty":
+    case "ClassMethod":
+    case "ClassPrivateProperty":
+    case "ClassPrivateMethod":
+      gatherNodeParts(node.key, parts);
+      break;
+
+    case "ThisExpression":
+      parts.push("this");
+      break;
+
+    case "Super":
+      parts.push("super");
+      break;
+
+    case "Import":
+      parts.push("import");
+      break;
+
+    case "DoExpression":
+      parts.push("do");
+      break;
+
+    case "YieldExpression":
+      parts.push("yield");
+      gatherNodeParts(node.argument, parts);
+      break;
+
+    case "AwaitExpression":
+      parts.push("await");
+      gatherNodeParts(node.argument, parts);
+      break;
+
+    case "AssignmentExpression":
+      gatherNodeParts(node.left, parts);
+      break;
+
+    case "VariableDeclarator":
+      gatherNodeParts(node.id, parts);
+      break;
+
+    case "FunctionExpression":
+    case "FunctionDeclaration":
+    case "ClassExpression":
+    case "ClassDeclaration":
+      gatherNodeParts(node.id, parts);
+      break;
+
+    case "PrivateName":
+      gatherNodeParts(node.id, parts);
+      break;
+
+    case "ParenthesizedExpression":
+      gatherNodeParts(node.expression, parts);
+      break;
+
+    case "UnaryExpression":
+    case "UpdateExpression":
+      gatherNodeParts(node.argument, parts);
+      break;
+
+    case "MetaProperty":
+      gatherNodeParts(node.meta, parts);
+      gatherNodeParts(node.property, parts);
+      break;
+
+    case "JSXElement":
+      gatherNodeParts(node.openingElement, parts);
+      break;
+
+    case "JSXOpeningElement":
+      parts.push(node.name);
+      break;
+
+    case "JSXFragment":
+      gatherNodeParts(node.openingFragment, parts);
+      break;
+
+    case "JSXOpeningFragment":
+      parts.push("Fragment");
+      break;
+
+    case "JSXNamespacedName":
+      gatherNodeParts(node.namespace, parts);
+      gatherNodeParts(node.name, parts);
+      break;
+  }
+}
+
+const collectorVisitor = {
+  ForStatement(path) {
+    const declar = path.get("init");
+
+    if (declar.isVar()) {
+      const {
+        scope
+      } = path;
+      const parentScope = scope.getFunctionParent() || scope.getProgramParent();
+      parentScope.registerBinding("var", declar);
+    }
+  },
+
+  Declaration(path) {
+    if (path.isBlockScoped()) return;
+    if (path.isImportDeclaration()) return;
+    if (path.isExportDeclaration()) return;
+    const parent = path.scope.getFunctionParent() || path.scope.getProgramParent();
+    parent.registerDeclaration(path);
+  },
+
+  ImportDeclaration(path) {
+    const parent = path.scope.getBlockParent();
+    parent.registerDeclaration(path);
+  },
+
+  ReferencedIdentifier(path, state) {
+    state.references.push(path);
+  },
+
+  ForXStatement(path, state) {
+    const left = path.get("left");
+
+    if (left.isPattern() || left.isIdentifier()) {
+      state.constantViolations.push(path);
+    } else if (left.isVar()) {
+      const {
+        scope
+      } = path;
+      const parentScope = scope.getFunctionParent() || scope.getProgramParent();
+      parentScope.registerBinding("var", left);
+    }
+  },
+
+  ExportDeclaration: {
+    exit(path) {
+      const {
+        node,
+        scope
+      } = path;
+      if (isExportAllDeclaration(node)) return;
+      const declar = node.declaration;
+
+      if (isClassDeclaration(declar) || isFunctionDeclaration(declar)) {
+        const id = declar.id;
+        if (!id) return;
+        const binding = scope.getBinding(id.name);
+        binding == null ? void 0 : binding.reference(path);
+      } else if (isVariableDeclaration(declar)) {
+        for (const decl of declar.declarations) {
+          for (const name of Object.keys(getBindingIdentifiers(decl))) {
+            const binding = scope.getBinding(name);
+            binding == null ? void 0 : binding.reference(path);
+          }
+        }
+      }
+    }
+
+  },
+
+  LabeledStatement(path) {
+    path.scope.getBlockParent().registerDeclaration(path);
+  },
+
+  AssignmentExpression(path, state) {
+    state.assignments.push(path);
+  },
+
+  UpdateExpression(path, state) {
+    state.constantViolations.push(path);
+  },
+
+  UnaryExpression(path, state) {
+    if (path.node.operator === "delete") {
+      state.constantViolations.push(path);
+    }
+  },
+
+  BlockScoped(path) {
+    let scope = path.scope;
+    if (scope.path === path) scope = scope.parent;
+    const parent = scope.getBlockParent();
+    parent.registerDeclaration(path);
+
+    if (path.isClassDeclaration() && path.node.id) {
+      const id = path.node.id;
+      const name = id.name;
+      path.scope.bindings[name] = path.scope.parent.getBinding(name);
+    }
+  },
+
+  CatchClause(path) {
+    path.scope.registerBinding("let", path);
+  },
+
+  Function(path) {
+    if (path.isFunctionExpression() && path.has("id") && !path.get("id").node[NOT_LOCAL_BINDING]) {
+      path.scope.registerBinding("local", path.get("id"), path);
+    }
+
+    const params = path.get("params");
+
+    for (const param of params) {
+      path.scope.registerBinding("param", param);
+    }
+  },
+
+  ClassExpression(path) {
+    if (path.has("id") && !path.get("id").node[NOT_LOCAL_BINDING]) {
+      path.scope.registerBinding("local", path);
+    }
+  }
+
+};
+let uid = 0;
+
+class Scope {
+  constructor(path) {
+    this.uid = void 0;
+    this.path = void 0;
+    this.block = void 0;
+    this.labels = void 0;
+    this.inited = void 0;
+    this.bindings = void 0;
+    this.references = void 0;
+    this.globals = void 0;
+    this.uids = void 0;
+    this.data = void 0;
+    this.crawling = void 0;
+    const {
+      node
+    } = path;
+
+    const cached = _cache.scope.get(node);
+
+    if ((cached == null ? void 0 : cached.path) === path) {
+      return cached;
+    }
+
+    _cache.scope.set(node, this);
+
+    this.uid = uid++;
+    this.block = node;
+    this.path = path;
+    this.labels = new Map();
+    this.inited = false;
+  }
+
+  get parent() {
+    var _parent;
+
+    let parent,
+        path = this.path;
+
+    do {
+      const isKey = path.key === "key";
+      path = path.parentPath;
+      if (isKey && path.isMethod()) path = path.parentPath;
+      if (path && path.isScope()) parent = path;
+    } while (path && !parent);
+
+    return (_parent = parent) == null ? void 0 : _parent.scope;
+  }
+
+  get parentBlock() {
+    return this.path.parent;
+  }
+
+  get hub() {
+    return this.path.hub;
+  }
+
+  traverse(node, opts, state) {
+    (0, _index.default)(node, opts, this, state, this.path);
+  }
+
+  generateDeclaredUidIdentifier(name) {
+    const id = this.generateUidIdentifier(name);
+    this.push({
+      id
+    });
+    return cloneNode(id);
+  }
+
+  generateUidIdentifier(name) {
+    return identifier(this.generateUid(name));
+  }
+
+  generateUid(name = "temp") {
+    name = toIdentifier(name).replace(/^_+/, "").replace(/[0-9]+$/g, "");
+    let uid;
+    let i = 1;
+
+    do {
+      uid = this._generateUid(name, i);
+      i++;
+    } while (this.hasLabel(uid) || this.hasBinding(uid) || this.hasGlobal(uid) || this.hasReference(uid));
+
+    const program = this.getProgramParent();
+    program.references[uid] = true;
+    program.uids[uid] = true;
+    return uid;
+  }
+
+  _generateUid(name, i) {
+    let id = name;
+    if (i > 1) id += i;
+    return `_${id}`;
+  }
+
+  generateUidBasedOnNode(node, defaultName) {
+    const parts = [];
+    gatherNodeParts(node, parts);
+    let id = parts.join("$");
+    id = id.replace(/^_/, "") || defaultName || "ref";
+    return this.generateUid(id.slice(0, 20));
+  }
+
+  generateUidIdentifierBasedOnNode(node, defaultName) {
+    return identifier(this.generateUidBasedOnNode(node, defaultName));
+  }
+
+  isStatic(node) {
+    if (isThisExpression(node) || isSuper(node)) {
+      return true;
+    }
+
+    if (isIdentifier(node)) {
+      const binding = this.getBinding(node.name);
+
+      if (binding) {
+        return binding.constant;
+      } else {
+        return this.hasBinding(node.name);
+      }
+    }
+
+    return false;
+  }
+
+  maybeGenerateMemoised(node, dontPush) {
+    if (this.isStatic(node)) {
+      return null;
+    } else {
+      const id = this.generateUidIdentifierBasedOnNode(node);
+
+      if (!dontPush) {
+        this.push({
+          id
+        });
+        return cloneNode(id);
+      }
+
+      return id;
+    }
+  }
+
+  checkBlockScopedCollisions(local, kind, name, id) {
+    if (kind === "param") return;
+    if (local.kind === "local") return;
+    const duplicate = kind === "let" || local.kind === "let" || local.kind === "const" || local.kind === "module" || local.kind === "param" && (kind === "let" || kind === "const");
+
+    if (duplicate) {
+      throw this.hub.buildError(id, `Duplicate declaration "${name}"`, TypeError);
+    }
+  }
+
+  rename(oldName, newName, block) {
+    const binding = this.getBinding(oldName);
+
+    if (binding) {
+      newName = newName || this.generateUidIdentifier(oldName).name;
+      return new _renamer.default(binding, oldName, newName).rename(block);
+    }
+  }
+
+  _renameFromMap(map, oldName, newName, value) {
+    if (map[oldName]) {
+      map[newName] = value;
+      map[oldName] = null;
+    }
+  }
+
+  dump() {
+    const sep = "-".repeat(60);
+    console.log(sep);
+    let scope = this;
+
+    do {
+      console.log("#", scope.block.type);
+
+      for (const name of Object.keys(scope.bindings)) {
+        const binding = scope.bindings[name];
+        console.log(" -", name, {
+          constant: binding.constant,
+          references: binding.references,
+          violations: binding.constantViolations.length,
+          kind: binding.kind
+        });
+      }
+    } while (scope = scope.parent);
+
+    console.log(sep);
+  }
+
+  toArray(node, i, arrayLikeIsIterable) {
+    if (isIdentifier(node)) {
+      const binding = this.getBinding(node.name);
+
+      if (binding != null && binding.constant && binding.path.isGenericType("Array")) {
+        return node;
+      }
+    }
+
+    if (isArrayExpression(node)) {
+      return node;
+    }
+
+    if (isIdentifier(node, {
+      name: "arguments"
+    })) {
+      return callExpression(memberExpression(memberExpression(memberExpression(identifier("Array"), identifier("prototype")), identifier("slice")), identifier("call")), [node]);
+    }
+
+    let helperName;
+    const args = [node];
+
+    if (i === true) {
+      helperName = "toConsumableArray";
+    } else if (i) {
+      args.push(numericLiteral(i));
+      helperName = "slicedToArray";
+    } else {
+      helperName = "toArray";
+    }
+
+    if (arrayLikeIsIterable) {
+      args.unshift(this.hub.addHelper(helperName));
+      helperName = "maybeArrayLike";
+    }
+
+    return callExpression(this.hub.addHelper(helperName), args);
+  }
+
+  hasLabel(name) {
+    return !!this.getLabel(name);
+  }
+
+  getLabel(name) {
+    return this.labels.get(name);
+  }
+
+  registerLabel(path) {
+    this.labels.set(path.node.label.name, path);
+  }
+
+  registerDeclaration(path) {
+    if (path.isLabeledStatement()) {
+      this.registerLabel(path);
+    } else if (path.isFunctionDeclaration()) {
+      this.registerBinding("hoisted", path.get("id"), path);
+    } else if (path.isVariableDeclaration()) {
+      const declarations = path.get("declarations");
+
+      for (const declar of declarations) {
+        this.registerBinding(path.node.kind, declar);
+      }
+    } else if (path.isClassDeclaration()) {
+      this.registerBinding("let", path);
+    } else if (path.isImportDeclaration()) {
+      const specifiers = path.get("specifiers");
+
+      for (const specifier of specifiers) {
+        this.registerBinding("module", specifier);
+      }
+    } else if (path.isExportDeclaration()) {
+      const declar = path.get("declaration");
+
+      if (declar.isClassDeclaration() || declar.isFunctionDeclaration() || declar.isVariableDeclaration()) {
+        this.registerDeclaration(declar);
+      }
+    } else {
+      this.registerBinding("unknown", path);
+    }
+  }
+
+  buildUndefinedNode() {
+    return unaryExpression("void", numericLiteral(0), true);
+  }
+
+  registerConstantViolation(path) {
+    const ids = path.getBindingIdentifiers();
+
+    for (const name of Object.keys(ids)) {
+      const binding = this.getBinding(name);
+      if (binding) binding.reassign(path);
+    }
+  }
+
+  registerBinding(kind, path, bindingPath = path) {
+    if (!kind) throw new ReferenceError("no `kind`");
+
+    if (path.isVariableDeclaration()) {
+      const declarators = path.get("declarations");
+
+      for (const declar of declarators) {
+        this.registerBinding(kind, declar);
+      }
+
+      return;
+    }
+
+    const parent = this.getProgramParent();
+    const ids = path.getOuterBindingIdentifiers(true);
+
+    for (const name of Object.keys(ids)) {
+      parent.references[name] = true;
+
+      for (const id of ids[name]) {
+        const local = this.getOwnBinding(name);
+
+        if (local) {
+          if (local.identifier === id) continue;
+          this.checkBlockScopedCollisions(local, kind, name, id);
+        }
+
+        if (local) {
+          this.registerConstantViolation(bindingPath);
+        } else {
+          this.bindings[name] = new _binding.default({
+            identifier: id,
+            scope: this,
+            path: bindingPath,
+            kind: kind
+          });
+        }
+      }
+    }
+  }
+
+  addGlobal(node) {
+    this.globals[node.name] = node;
+  }
+
+  hasUid(name) {
+    let scope = this;
+
+    do {
+      if (scope.uids[name]) return true;
+    } while (scope = scope.parent);
+
+    return false;
+  }
+
+  hasGlobal(name) {
+    let scope = this;
+
+    do {
+      if (scope.globals[name]) return true;
+    } while (scope = scope.parent);
+
+    return false;
+  }
+
+  hasReference(name) {
+    return !!this.getProgramParent().references[name];
+  }
+
+  isPure(node, constantsOnly) {
+    if (isIdentifier(node)) {
+      const binding = this.getBinding(node.name);
+      if (!binding) return false;
+      if (constantsOnly) return binding.constant;
+      return true;
+    } else if (isClass(node)) {
+      if (node.superClass && !this.isPure(node.superClass, constantsOnly)) {
+        return false;
+      }
+
+      return this.isPure(node.body, constantsOnly);
+    } else if (isClassBody(node)) {
+      for (const method of node.body) {
+        if (!this.isPure(method, constantsOnly)) return false;
+      }
+
+      return true;
+    } else if (isBinary(node)) {
+      return this.isPure(node.left, constantsOnly) && this.isPure(node.right, constantsOnly);
+    } else if (isArrayExpression(node)) {
+      for (const elem of node.elements) {
+        if (!this.isPure(elem, constantsOnly)) return false;
+      }
+
+      return true;
+    } else if (isObjectExpression(node)) {
+      for (const prop of node.properties) {
+        if (!this.isPure(prop, constantsOnly)) return false;
+      }
+
+      return true;
+    } else if (isMethod(node)) {
+      if (node.computed && !this.isPure(node.key, constantsOnly)) return false;
+      if (node.kind === "get" || node.kind === "set") return false;
+      return true;
+    } else if (isProperty(node)) {
+      if (node.computed && !this.isPure(node.key, constantsOnly)) return false;
+      return this.isPure(node.value, constantsOnly);
+    } else if (isUnaryExpression(node)) {
+      return this.isPure(node.argument, constantsOnly);
+    } else if (isTaggedTemplateExpression(node)) {
+      return matchesPattern(node.tag, "String.raw") && !this.hasBinding("String", true) && this.isPure(node.quasi, constantsOnly);
+    } else if (isTemplateLiteral(node)) {
+      for (const expression of node.expressions) {
+        if (!this.isPure(expression, constantsOnly)) return false;
+      }
+
+      return true;
+    } else {
+      return isPureish(node);
+    }
+  }
+
+  setData(key, val) {
+    return this.data[key] = val;
+  }
+
+  getData(key) {
+    let scope = this;
+
+    do {
+      const data = scope.data[key];
+      if (data != null) return data;
+    } while (scope = scope.parent);
+  }
+
+  removeData(key) {
+    let scope = this;
+
+    do {
+      const data = scope.data[key];
+      if (data != null) scope.data[key] = null;
+    } while (scope = scope.parent);
+  }
+
+  init() {
+    if (!this.inited) {
+      this.inited = true;
+      this.crawl();
+    }
+  }
+
+  crawl() {
+    const path = this.path;
+    this.references = Object.create(null);
+    this.bindings = Object.create(null);
+    this.globals = Object.create(null);
+    this.uids = Object.create(null);
+    this.data = Object.create(null);
+    const programParent = this.getProgramParent();
+    if (programParent.crawling) return;
+    const state = {
+      references: [],
+      constantViolations: [],
+      assignments: []
+    };
+    this.crawling = true;
+
+    if (path.type !== "Program" && collectorVisitor._exploded) {
+      for (const visit of collectorVisitor.enter) {
+        visit(path, state);
+      }
+
+      const typeVisitors = collectorVisitor[path.type];
+
+      if (typeVisitors) {
+        for (const visit of typeVisitors.enter) {
+          visit(path, state);
+        }
+      }
+    }
+
+    path.traverse(collectorVisitor, state);
+    this.crawling = false;
+
+    for (const path of state.assignments) {
+      const ids = path.getBindingIdentifiers();
+
+      for (const name of Object.keys(ids)) {
+        if (path.scope.getBinding(name)) continue;
+        programParent.addGlobal(ids[name]);
+      }
+
+      path.scope.registerConstantViolation(path);
+    }
+
+    for (const ref of state.references) {
+      const binding = ref.scope.getBinding(ref.node.name);
+
+      if (binding) {
+        binding.reference(ref);
+      } else {
+        programParent.addGlobal(ref.node);
+      }
+    }
+
+    for (const path of state.constantViolations) {
+      path.scope.registerConstantViolation(path);
+    }
+  }
+
+  push(opts) {
+    let path = this.path;
+
+    if (!path.isBlockStatement() && !path.isProgram()) {
+      path = this.getBlockParent().path;
+    }
+
+    if (path.isSwitchStatement()) {
+      path = (this.getFunctionParent() || this.getProgramParent()).path;
+    }
+
+    if (path.isLoop() || path.isCatchClause() || path.isFunction()) {
+      path.ensureBlock();
+      path = path.get("body");
+    }
+
+    const unique = opts.unique;
+    const kind = opts.kind || "var";
+    const blockHoist = opts._blockHoist == null ? 2 : opts._blockHoist;
+    const dataKey = `declaration:${kind}:${blockHoist}`;
+    let declarPath = !unique && path.getData(dataKey);
+
+    if (!declarPath) {
+      const declar = variableDeclaration(kind, []);
+      declar._blockHoist = blockHoist;
+      [declarPath] = path.unshiftContainer("body", [declar]);
+      if (!unique) path.setData(dataKey, declarPath);
+    }
+
+    const declarator = variableDeclarator(opts.id, opts.init);
+    declarPath.node.declarations.push(declarator);
+    this.registerBinding(kind, declarPath.get("declarations").pop());
+  }
+
+  getProgramParent() {
+    let scope = this;
+
+    do {
+      if (scope.path.isProgram()) {
+        return scope;
+      }
+    } while (scope = scope.parent);
+
+    throw new Error("Couldn't find a Program");
+  }
+
+  getFunctionParent() {
+    let scope = this;
+
+    do {
+      if (scope.path.isFunctionParent()) {
+        return scope;
+      }
+    } while (scope = scope.parent);
+
+    return null;
+  }
+
+  getBlockParent() {
+    let scope = this;
+
+    do {
+      if (scope.path.isBlockParent()) {
+        return scope;
+      }
+    } while (scope = scope.parent);
+
+    throw new Error("We couldn't find a BlockStatement, For, Switch, Function, Loop or Program...");
+  }
+
+  getAllBindings() {
+    const ids = Object.create(null);
+    let scope = this;
+
+    do {
+      for (const key of Object.keys(scope.bindings)) {
+        if (key in ids === false) {
+          ids[key] = scope.bindings[key];
+        }
+      }
+
+      scope = scope.parent;
+    } while (scope);
+
+    return ids;
+  }
+
+  getAllBindingsOfKind(...kinds) {
+    const ids = Object.create(null);
+
+    for (const kind of kinds) {
+      let scope = this;
+
+      do {
+        for (const name of Object.keys(scope.bindings)) {
+          const binding = scope.bindings[name];
+          if (binding.kind === kind) ids[name] = binding;
+        }
+
+        scope = scope.parent;
+      } while (scope);
+    }
+
+    return ids;
+  }
+
+  bindingIdentifierEquals(name, node) {
+    return this.getBindingIdentifier(name) === node;
+  }
+
+  getBinding(name) {
+    let scope = this;
+    let previousPath;
+
+    do {
+      const binding = scope.getOwnBinding(name);
+
+      if (binding) {
+        var _previousPath;
+
+        if ((_previousPath = previousPath) != null && _previousPath.isPattern() && binding.kind !== "param") {} else {
+          return binding;
+        }
+      }
+
+      previousPath = scope.path;
+    } while (scope = scope.parent);
+  }
+
+  getOwnBinding(name) {
+    return this.bindings[name];
+  }
+
+  getBindingIdentifier(name) {
+    var _this$getBinding;
+
+    return (_this$getBinding = this.getBinding(name)) == null ? void 0 : _this$getBinding.identifier;
+  }
+
+  getOwnBindingIdentifier(name) {
+    const binding = this.bindings[name];
+    return binding == null ? void 0 : binding.identifier;
+  }
+
+  hasOwnBinding(name) {
+    return !!this.getOwnBinding(name);
+  }
+
+  hasBinding(name, noGlobals) {
+    if (!name) return false;
+    if (this.hasOwnBinding(name)) return true;
+    if (this.parentHasBinding(name, noGlobals)) return true;
+    if (this.hasUid(name)) return true;
+    if (!noGlobals && Scope.globals.includes(name)) return true;
+    if (!noGlobals && Scope.contextVariables.includes(name)) return true;
+    return false;
+  }
+
+  parentHasBinding(name, noGlobals) {
+    var _this$parent;
+
+    return (_this$parent = this.parent) == null ? void 0 : _this$parent.hasBinding(name, noGlobals);
+  }
+
+  moveBindingTo(name, scope) {
+    const info = this.getBinding(name);
+
+    if (info) {
+      info.scope.removeOwnBinding(name);
+      info.scope = scope;
+      scope.bindings[name] = info;
+    }
+  }
+
+  removeOwnBinding(name) {
+    delete this.bindings[name];
+  }
+
+  removeBinding(name) {
+    var _this$getBinding2;
+
+    (_this$getBinding2 = this.getBinding(name)) == null ? void 0 : _this$getBinding2.scope.removeOwnBinding(name);
+    let scope = this;
+
+    do {
+      if (scope.uids[name]) {
+        scope.uids[name] = false;
+      }
+    } while (scope = scope.parent);
+  }
+
+}
+
+exports.default = Scope;
+Scope.globals = Object.keys(_globals.builtin);
+Scope.contextVariables = ["arguments", "undefined", "Infinity", "NaN"];
+\ No newline at end of file
diff --git a/chromium/third_party/node/node_modules/@babel/traverse/lib/scope/lib/renamer.js b/chromium/third_party/node/node_modules/@babel/traverse/lib/scope/lib/renamer.js
new file mode 100644
index 00000000000..f11bbb70066
--- /dev/null
+++ b/chromium/third_party/node/node_modules/@babel/traverse/lib/scope/lib/renamer.js
@@ -0,0 +1,146 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+var _binding = require("../binding");
+
+var _helperSplitExportDeclaration = require("@babel/helper-split-export-declaration");
+
+var _t = require("@babel/types");
+
+const {
+  VISITOR_KEYS,
+  assignmentExpression,
+  identifier,
+  toExpression,
+  variableDeclaration,
+  variableDeclarator
+} = _t;
+const renameVisitor = {
+  ReferencedIdentifier({
+    node
+  }, state) {
+    if (node.name === state.oldName) {
+      node.name = state.newName;
+    }
+  },
+
+  Scope(path, state) {
+    if (!path.scope.bindingIdentifierEquals(state.oldName, state.binding.identifier)) {
+      skipAllButComputedMethodKey(path);
+    }
+  },
+
+  "AssignmentExpression|Declaration|VariableDeclarator"(path, state) {
+    if (path.isVariableDeclaration()) return;
+    const ids = path.getOuterBindingIdentifiers();
+
+    for (const name in ids) {
+      if (name === state.oldName) ids[name].name = state.newName;
+    }
+  }
+
+};
+
+class Renamer {
+  constructor(binding, oldName, newName) {
+    this.newName = newName;
+    this.oldName = oldName;
+    this.binding = binding;
+  }
+
+  maybeConvertFromExportDeclaration(parentDeclar) {
+    const maybeExportDeclar = parentDeclar.parentPath;
+
+    if (!maybeExportDeclar.isExportDeclaration()) {
+      return;
+    }
+
+    if (maybeExportDeclar.isExportDefaultDeclaration() && !maybeExportDeclar.get("declaration").node.id) {
+      return;
+    }
+
+    (0, _helperSplitExportDeclaration.default)(maybeExportDeclar);
+  }
+
+  maybeConvertFromClassFunctionDeclaration(path) {
+    return;
+    if (!path.isFunctionDeclaration() && !path.isClassDeclaration()) return;
+    if (this.binding.kind !== "hoisted") return;
+    path.node.id = identifier(this.oldName);
+    path.node._blockHoist = 3;
+    path.replaceWith(variableDeclaration("let", [variableDeclarator(identifier(this.newName), toExpression(path.node))]));
+  }
+
+  maybeConvertFromClassFunctionExpression(path) {
+    return;
+    if (!path.isFunctionExpression() && !path.isClassExpression()) return;
+    if (this.binding.kind !== "local") return;
+    path.node.id = identifier(this.oldName);
+    this.binding.scope.parent.push({
+      id: identifier(this.newName)
+    });
+    path.replaceWith(assignmentExpression("=", identifier(this.newName), path.node));
+  }
+
+  rename(block) {
+    const {
+      binding,
+      oldName,
+      newName
+    } = this;
+    const {
+      scope,
+      path
+    } = binding;
+    const parentDeclar = path.find(path => path.isDeclaration() || path.isFunctionExpression() || path.isClassExpression());
+
+    if (parentDeclar) {
+      const bindingIds = parentDeclar.getOuterBindingIdentifiers();
+
+      if (bindingIds[oldName] === binding.identifier) {
+        this.maybeConvertFromExportDeclaration(parentDeclar);
+      }
+    }
+
+    const blockToTraverse = block || scope.block;
+
+    if ((blockToTraverse == null ? void 0 : blockToTraverse.type) === "SwitchStatement") {
+      blockToTraverse.cases.forEach(c => {
+        scope.traverse(c, renameVisitor, this);
+      });
+    } else {
+      scope.traverse(blockToTraverse, renameVisitor, this);
+    }
+
+    if (!block) {
+      scope.removeOwnBinding(oldName);
+      scope.bindings[newName] = binding;
+      this.binding.identifier.name = newName;
+    }
+
+    if (parentDeclar) {
+      this.maybeConvertFromClassFunctionDeclaration(parentDeclar);
+      this.maybeConvertFromClassFunctionExpression(parentDeclar);
+    }
+  }
+
+}
+
+exports.default = Renamer;
+
+function skipAllButComputedMethodKey(path) {
+  if (!path.isMethod() || !path.node.computed) {
+    path.skip();
+    return;
+  }
+
+  const keys = VISITOR_KEYS[path.type];
+
+  for (const key of keys) {
+    if (key !== "key") path.skipKey(key);
+  }
+}
+\ No newline at end of file
diff --git a/chromium/third_party/node/node_modules/@babel/traverse/lib/types.js b/chromium/third_party/node/node_modules/@babel/traverse/lib/types.js
new file mode 100644
index 00000000000..ec17ee62fc5
--- /dev/null
+++ b/chromium/third_party/node/node_modules/@babel/traverse/lib/types.js
@@ -0,0 +1,5 @@
+"use strict";
+
+var _index = require("./index");
+
+var _virtualTypes = require("./path/generated/virtual-types");
+\ No newline at end of file
diff --git a/chromium/third_party/node/node_modules/@babel/traverse/lib/visitors.js b/chromium/third_party/node/node_modules/@babel/traverse/lib/visitors.js
new file mode 100644
index 00000000000..33fab0c9acb
--- /dev/null
+++ b/chromium/third_party/node/node_modules/@babel/traverse/lib/visitors.js
@@ -0,0 +1,242 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.explode = explode;
+exports.verify = verify;
+exports.merge = merge;
+
+var virtualTypes = require("./path/lib/virtual-types");
+
+var _t = require("@babel/types");
+
+const {
+  DEPRECATED_KEYS,
+  FLIPPED_ALIAS_KEYS,
+  TYPES
+} = _t;
+
+function explode(visitor) {
+  if (visitor._exploded) return visitor;
+  visitor._exploded = true;
+
+  for (const nodeType of Object.keys(visitor)) {
+    if (shouldIgnoreKey(nodeType)) continue;
+    const parts = nodeType.split("|");
+    if (parts.length === 1) continue;
+    const fns = visitor[nodeType];
+    delete visitor[nodeType];
+
+    for (const part of parts) {
+      visitor[part] = fns;
+    }
+  }
+
+  verify(visitor);
+  delete visitor.__esModule;
+  ensureEntranceObjects(visitor);
+  ensureCallbackArrays(visitor);
+
+  for (const nodeType of Object.keys(visitor)) {
+    if (shouldIgnoreKey(nodeType)) continue;
+    const wrapper = virtualTypes[nodeType];
+    if (!wrapper) continue;
+    const fns = visitor[nodeType];
+
+    for (const type of Object.keys(fns)) {
+      fns[type] = wrapCheck(wrapper, fns[type]);
+    }
+
+    delete visitor[nodeType];
+
+    if (wrapper.types) {
+      for (const type of wrapper.types) {
+        if (visitor[type]) {
+          mergePair(visitor[type], fns);
+        } else {
+          visitor[type] = fns;
+        }
+      }
+    } else {
+      mergePair(visitor, fns);
+    }
+  }
+
+  for (const nodeType of Object.keys(visitor)) {
+    if (shouldIgnoreKey(nodeType)) continue;
+    const fns = visitor[nodeType];
+    let aliases = FLIPPED_ALIAS_KEYS[nodeType];
+    const deprecatedKey = DEPRECATED_KEYS[nodeType];
+
+    if (deprecatedKey) {
+      console.trace(`Visitor defined for ${nodeType} but it has been renamed to ${deprecatedKey}`);
+      aliases = [deprecatedKey];
+    }
+
+    if (!aliases) continue;
+    delete visitor[nodeType];
+
+    for (const alias of aliases) {
+      const existing = visitor[alias];
+
+      if (existing) {
+        mergePair(existing, fns);
+      } else {
+        visitor[alias] = Object.assign({}, fns);
+      }
+    }
+  }
+
+  for (const nodeType of Object.keys(visitor)) {
+    if (shouldIgnoreKey(nodeType)) continue;
+    ensureCallbackArrays(visitor[nodeType]);
+  }
+
+  return visitor;
+}
+
+function verify(visitor) {
+  if (visitor._verified) return;
+
+  if (typeof visitor === "function") {
+    throw new Error("You passed `traverse()` a function when it expected a visitor object, " + "are you sure you didn't mean `{ enter: Function }`?");
+  }
+
+  for (const nodeType of Object.keys(visitor)) {
+    if (nodeType === "enter" || nodeType === "exit") {
+      validateVisitorMethods(nodeType, visitor[nodeType]);
+    }
+
+    if (shouldIgnoreKey(nodeType)) continue;
+
+    if (TYPES.indexOf(nodeType) < 0) {
+      throw new Error(`You gave us a visitor for the node type ${nodeType} but it's not a valid type`);
+    }
+
+    const visitors = visitor[nodeType];
+
+    if (typeof visitors === "object") {
+      for (const visitorKey of Object.keys(visitors)) {
+        if (visitorKey === "enter" || visitorKey === "exit") {
+          validateVisitorMethods(`${nodeType}.${visitorKey}`, visitors[visitorKey]);
+        } else {
+          throw new Error("You passed `traverse()` a visitor object with the property " + `${nodeType} that has the invalid property ${visitorKey}`);
+        }
+      }
+    }
+  }
+
+  visitor._verified = true;
+}
+
+function validateVisitorMethods(path, val) {
+  const fns = [].concat(val);
+
+  for (const fn of fns) {
+    if (typeof fn !== "function") {
+      throw new TypeError(`Non-function found defined in ${path} with type ${typeof fn}`);
+    }
+  }
+}
+
+function merge(visitors, states = [], wrapper) {
+  const rootVisitor = {};
+
+  for (let i = 0; i < visitors.length; i++) {
+    const visitor = visitors[i];
+    const state = states[i];
+    explode(visitor);
+
+    for (const type of Object.keys(visitor)) {
+      let visitorType = visitor[type];
+
+      if (state || wrapper) {
+        visitorType = wrapWithStateOrWrapper(visitorType, state, wrapper);
+      }
+
+      const nodeVisitor = rootVisitor[type] = rootVisitor[type] || {};
+      mergePair(nodeVisitor, visitorType);
+    }
+  }
+
+  return rootVisitor;
+}
+
+function wrapWithStateOrWrapper(oldVisitor, state, wrapper) {
+  const newVisitor = {};
+
+  for (const key of Object.keys(oldVisitor)) {
+    let fns = oldVisitor[key];
+    if (!Array.isArray(fns)) continue;
+    fns = fns.map(function (fn) {
+      let newFn = fn;
+
+      if (state) {
+        newFn = function (path) {
+          return fn.call(state, path, state);
+        };
+      }
+
+      if (wrapper) {
+        newFn = wrapper(state.key, key, newFn);
+      }
+
+      if (newFn !== fn) {
+        newFn.toString = () => fn.toString();
+      }
+
+      return newFn;
+    });
+    newVisitor[key] = fns;
+  }
+
+  return newVisitor;
+}
+
+function ensureEntranceObjects(obj) {
+  for (const key of Object.keys(obj)) {
+    if (shouldIgnoreKey(key)) continue;
+    const fns = obj[key];
+
+    if (typeof fns === "function") {
+      obj[key] = {
+        enter: fns
+      };
+    }
+  }
+}
+
+function ensureCallbackArrays(obj) {
+  if (obj.enter && !Array.isArray(obj.enter)) obj.enter = [obj.enter];
+  if (obj.exit && !Array.isArray(obj.exit)) obj.exit = [obj.exit];
+}
+
+function wrapCheck(wrapper, fn) {
+  const newFn = function (path) {
+    if (wrapper.checkPath(path)) {
+      return fn.apply(this, arguments);
+    }
+  };
+
+  newFn.toString = () => fn.toString();
+
+  return newFn;
+}
+
+function shouldIgnoreKey(key) {
+  if (key[0] === "_") return true;
+  if (key === "enter" || key === "exit" || key === "shouldSkip") return true;
+
+  if (key === "denylist" || key === "noScope" || key === "skipKeys" || key === "blacklist") {
+    return true;
+  }
+
+  return false;
+}
+
+function mergePair(dest, src) {
+  for (const key of Object.keys(src)) {
+    dest[key] = [].concat(dest[key] || [], src[key]);
+  }
+}
+\ No newline at end of file