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diff --git a/deps/v8/test/preparser/strict-identifiers.pyt b/deps/v8/test/preparser/strict-identifiers.pyt
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+# Copyright 2011 the V8 project authors. All rights reserved.
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+#     * Redistributions of source code must retain the above copyright
+#       notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+#       copyright notice, this list of conditions and the following
+#       disclaimer in the documentation and/or other materials provided
+#       with the distribution.
+#     * Neither the name of Google Inc. nor the names of its
+#       contributors may be used to endorse or promote products derived
+#       from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+# Templatated tests with eval/arguments/future reserved words.
+
+# ----------------------------------------------------------------------
+# Constants and utility functions
+
+reserved_words = [
+  'class',
+  'const', # Has other error message than other reserved words.
+  'enum',
+  'export',
+  'extends',
+  'import',
+  'super'
+  ]
+
+strict_reserved_words = [
+  'implements',
+  'interface',
+  'let',
+  'package',
+  'private',
+  'protected',
+  'public',
+  'static',
+  'yield'
+  ]
+
+assign_ops = {
+  "=": "assign",
+  "+=": "addeq",
+  "-=": "subeq",
+  "*=": "muleq",
+  "/=": "diveq",
+  "%=": "modeq",
+  "&=": "andeq",
+  "|=": "oreq",
+  "^=": "xoreq",
+  "<<=": "shleq",
+  ">>=": "asreq",
+  ">>>=": "lsreq"
+  }
+
+
+# A template that performs the same strict-mode test in different
+# scopes (global scope, function scope, and nested function scope).
+def StrictTemplate(name, source):
+  def MakeTests(replacement, expectation):
+    Template(name, '"use strict";\n' + source)(replacement, expectation)
+    Template(name + '-infunc',
+             'function foo() {\n "use strict";\n' + source +'\n}\n')(
+              replacement, expectation)
+    Template(name + '-infunc2',
+             'function foo() {\n "use strict";\n  function bar() {\n' +
+             source +'\n }\n}\n')(replacement, expectation)
+  return MakeTests
+
+# ----------------------------------------------------------------------
+# Test templates
+
+arg_name_own = Template("argument-name-own-$id", """
+  function foo($id) {
+    "use strict";
+  }
+""")
+
+arg_name_nested = Template("argument-name-nested-$id", """
+  function foo() {
+    "use strict";
+    function bar($id) { }
+  }
+""")
+
+func_name_own = Template("function-name-own-$id", """
+  function $id(foo) {
+    "use strict";
+  }
+""")
+
+func_name_nested = Template("function-name-nested-$id", """
+  function foo() {
+    "use strict";
+    function $id(bar) { }
+  }
+""")
+
+catch_var = StrictTemplate("catch-$id", """
+    try { } catch ($id) { }
+""")
+
+declare_var = StrictTemplate("var-$id", """
+  var $id = 42;
+""")
+
+assign_var = StrictTemplate("assign-$id-$opname", """
+  var x = $id $op 42;
+""")
+
+prefix_var = StrictTemplate("prefix-$opname-$id", """
+  var x = $op$id;
+""")
+
+postfix_var = StrictTemplate("postfix-$opname-$id", """
+  var x = $id$op;
+""")
+
+read_var = StrictTemplate("read-reserved-$id", """
+  var x = $id;
+""")
+
+setter_arg = StrictTemplate("setter-param-$id", """
+  var x = {set foo($id) { }};
+""")
+
+non_strict_use = Template("nonstrict-$id", """
+  var $id = 42;
+  $id++;
+  $id--;
+  ++$id;
+  --$id;
+  $id += 10;
+  $id -= 10;
+  try {} catch ($id) { }
+  function $id($id) { }
+  var x = {$id: 42};
+  x = {get $id() {}, set $id(value) {}};
+  function foo() { "use strict;" }
+  var $id = 42;
+  $id++;
+  $id--;
+  ++$id;
+  --$id;
+  $id += 10;
+  $id -= 10;
+  try {} catch ($id) { }
+  function $id($id) { }
+  x = {$id: 42};
+  x = {get $id() {}, set $id(value) {}};
+""")
+
+identifier_name_source = """
+  var x = {$id: 42};
+  x = {get $id() {}, set $id(value) {}};
+  x.$id = 42;
+  function foo() { "use strict;" }
+  x = {$id: 42};
+  x = {get $id() {}, set $id(value) {}};
+  x.$id = 42;
+"""
+
+identifier_name = Template("identifier_name-$id", identifier_name_source)
+identifier_name_strict = StrictTemplate("identifier_name_strict-$id",
+                                        identifier_name_source)
+
+# ----------------------------------------------------------------------
+# Run tests
+
+# eval and arguments have specific exceptions for different uses.
+for id in ["eval", "arguments"]:
+  arg_name_own({"id": id}, "strict_param_name")
+  arg_name_nested({"id": id}, "strict_param_name")
+  func_name_own({"id": id}, "strict_function_name")
+  func_name_nested({"id": id}, "strict_function_name")
+  setter_arg({"id": id}, "strict_param_name")
+  for op in assign_ops.keys():
+    assign_var({"id": id, "op":op, "opname": assign_ops[op]},
+               "strict_lhs_assignment")
+  catch_var({"id": id}, "strict_catch_variable")
+  declare_var({"id": id}, "strict_var_name")
+  prefix_var({"id": id, "op":"++", "opname":"inc"}, "strict_lhs_prefix")
+  prefix_var({"id": id, "op":"--", "opname":"dec"}, "strict_lhs_prefix")
+  postfix_var({"id": id, "op":"++", "opname":"inc"}, "strict_lhs_postfix")
+  postfix_var({"id": id, "op":"--", "opname":"dec"}, "strict_lhs_postfix")
+  non_strict_use({"id": id}, None)
+
+
+# Reserved words just throw the same exception in all cases
+# (with "const" being special, as usual).
+for reserved_word in reserved_words + strict_reserved_words:
+  if (reserved_word in strict_reserved_words):
+    message = "strict_reserved_word"
+  elif (reserved_word == "const"):
+    message = "unexpected_token"
+  else:
+    message = "reserved_word"
+  arg_name_own({"id":reserved_word}, message)
+  arg_name_nested({"id":reserved_word}, message)
+  setter_arg({"id": reserved_word}, message)
+  func_name_own({"id":reserved_word}, message)
+  func_name_nested({"id":reserved_word}, message)
+  for op in assign_ops.keys():
+    assign_var({"id":reserved_word, "op":op, "opname": assign_ops[op]}, message)
+  catch_var({"id":reserved_word}, message)
+  declare_var({"id":reserved_word}, message)
+  prefix_var({"id":reserved_word, "op":"++", "opname":"inc"}, message)
+  prefix_var({"id":reserved_word, "op":"--", "opname":"dec"}, message)
+  postfix_var({"id":reserved_word, "op":"++", "opname":"inc"}, message)
+  postfix_var({"id":reserved_word, "op":"--", "opname":"dec"}, message)
+  read_var({"id": reserved_word}, message)
+  identifier_name({"id": reserved_word}, None);
+  identifier_name_strict({"id": reserved_word}, None);
+
+
+# Future reserved words in strict mode behave like normal identifiers
+# in a non strict context.
+for reserved_word in strict_reserved_words:
+  non_strict_use({"id": id}, None)