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diff --git a/Source/JavaScriptCore/runtime/JSPromiseFunctions.cpp b/Source/JavaScriptCore/runtime/JSPromiseFunctions.cpp
deleted file mode 100644
index 139d280e8..000000000
--- a/Source/JavaScriptCore/runtime/JSPromiseFunctions.cpp
+++ /dev/null
@@ -1,274 +0,0 @@
-/*
- * Copyright (C) 2013 Apple Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. 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.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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.
- */
-
-#include "config.h"
-#include "JSPromiseFunctions.h"
-
-#if ENABLE(PROMISES)
-
-#include "Error.h"
-#include "JSCJSValueInlines.h"
-#include "JSCellInlines.h"
-#include "JSPromise.h"
-#include "JSPromiseConstructor.h"
-#include "JSPromiseDeferred.h"
-#include "NumberObject.h"
-
-namespace JSC {
-
-// Deferred Construction Functions
-static EncodedJSValue JSC_HOST_CALL deferredConstructionFunction(ExecState* exec)
-{
-    JSObject* F = exec->callee();
-
-    VM& vm = exec->vm();
-
-    // 1. Set F's [[Resolve]] internal slot to resolve.
-    F->putDirect(vm, vm.propertyNames->resolvePrivateName, exec->argument(0));
-
-    // 2. Set F's [[Reject]] internal slot to reject.
-    F->putDirect(vm, vm.propertyNames->rejectPrivateName, exec->argument(1));
-
-    // 3. Return.
-    return JSValue::encode(jsUndefined());
-}
-
-JSFunction* createDeferredConstructionFunction(VM& vm, JSGlobalObject* globalObject)
-{
-    return JSFunction::create(vm, globalObject, 2, ASCIILiteral("DeferredConstructionFunction"), deferredConstructionFunction);
-}
-
-// Identity Functions
-
-static EncodedJSValue JSC_HOST_CALL identifyFunction(ExecState* exec)
-{
-    return JSValue::encode(exec->argument(0));
-}
-
-JSFunction* createIdentifyFunction(VM& vm, JSGlobalObject* globalObject)
-{
-    return JSFunction::create(vm, globalObject, 1, ASCIILiteral("IdentityFunction"), identifyFunction);
-}
-
-// Promise.All Countdown Functions
-
-static EncodedJSValue JSC_HOST_CALL promiseAllCountdownFunction(ExecState* exec)
-{
-    JSValue x = exec->argument(0);
-    VM& vm = exec->vm();
-    JSObject* F = exec->callee();
-
-    // 1. Let 'index' be the value of F's [[Index]] internal slot.
-    uint32_t index = F->get(exec, vm.propertyNames->indexPrivateName).asUInt32();
-
-    // 2. Let 'values' be the value of F's [[Values]] internal slot..
-    JSArray* values = jsCast<JSArray*>(F->get(exec, vm.propertyNames->valuesPrivateName));
-
-    // 3. Let 'deferred' be the value of F's [[Deferred]] internal slot.
-    JSPromiseDeferred* deferred = jsCast<JSPromiseDeferred*>(F->get(exec, vm.propertyNames->deferredPrivateName));
-
-    // 4. Let 'countdownHolder' be the value of F's [[CountdownHolder]] internal slot.
-    NumberObject* countdownHolder = jsCast<NumberObject*>(F->get(exec, vm.propertyNames->countdownHolderPrivateName));
-
-    // 5. Let 'result' be the result of calling the [[DefineOwnProperty]] internal method
-    //    of 'values' with arguments 'index' and Property Descriptor { [[Value]]: x,
-    //    [[Writable]]: true, [[Enumerable]]: true, [[Configurable]]: true }.
-    values->putDirectIndex(exec, index, x);
-
-    // 6. RejectIfAbrupt(result, deferred).
-    if (exec->hadException())
-        abruptRejection(exec, deferred);
-
-    // 7. Set countdownHolder.[[Countdown]] to countdownHolder.[[Countdown]] - 1.
-    uint32_t newCountdownValue = countdownHolder->internalValue().asUInt32() - 1;
-    countdownHolder->setInternalValue(vm, JSValue(newCountdownValue));
-
-    // 8. If countdownHolder.[[Countdown]] is 0,
-    if (!newCountdownValue) {
-        // i. Return the result of calling the [[Call]] internal method of deferred.[[Resolve]]
-        //    with undefined as thisArgument and a List containing 'values' as argumentsList.
-        performDeferredResolve(exec, deferred, values);
-    }
-
-    // 9. Return.
-    return JSValue::encode(jsUndefined());
-}
-
-JSFunction* createPromiseAllCountdownFunction(VM& vm, JSGlobalObject* globalObject)
-{
-    return JSFunction::create(vm, globalObject, 1, ASCIILiteral("PromiseAllCountdownFunction"), promiseAllCountdownFunction);
-}
-
-// Promise Resolution Handler Functions
-
-static EncodedJSValue JSC_HOST_CALL promiseResolutionHandlerFunction(ExecState* exec)
-{
-    JSValue x = exec->argument(0);
-    VM& vm = exec->vm();
-    JSObject* F = exec->callee();
-
-    // 1. Let 'promise' be the value of F's [[Promise]] internal slot
-    JSPromise* promise = jsCast<JSPromise*>(F->get(exec, vm.propertyNames->promisePrivateName));
-
-    // 2. Let 'fulfillmentHandler' be the value of F's [[FulfillmentHandler]] internal slot.
-    JSValue fulfillmentHandler = F->get(exec, vm.propertyNames->fulfillmentHandlerPrivateName);
-    
-    // 3. Let 'rejectionHandler' be the value of F's [[RejectionHandler]] internal slot.
-    JSValue rejectionHandler = F->get(exec, vm.propertyNames->rejectionHandlerPrivateName);
-    
-    // 4. If SameValue(x, promise) is true,
-    if (sameValue(exec, x, promise)) {
-        // i. Let 'selfResolutionError' be a newly-created TypeError object.
-        JSObject* selfResolutionError = createTypeError(exec, ASCIILiteral("Resolve a promise with itself"));
-        // ii. Return the result of calling the [[Call]] internal method of rejectionHandler with
-        //     undefined as thisArgument and a List containing selfResolutionError as argumentsList.
-        CallData rejectCallData;
-        CallType rejectCallType = getCallData(rejectionHandler, rejectCallData);
-        ASSERT(rejectCallType != CallTypeNone);
-
-        MarkedArgumentBuffer rejectArguments;
-        rejectArguments.append(selfResolutionError);
-
-        return JSValue::encode(call(exec, rejectionHandler, rejectCallType, rejectCallData, jsUndefined(), rejectArguments));
-    }
-
-    // 5. Let 'C' be the value of promise's [[PromiseConstructor]] internal slot.
-    JSValue C = promise->constructor();
-
-    // 6. Let 'deferred' be the result of calling GetDeferred(C)
-    JSValue deferredValue = createJSPromiseDeferredFromConstructor(exec, C);
-
-    // 7. ReturnIfAbrupt(deferred).
-    if (exec->hadException())
-        return JSValue::encode(jsUndefined());
-
-    JSPromiseDeferred* deferred = jsCast<JSPromiseDeferred*>(deferredValue);
-
-    // 8. Let 'updateResult' be the result of calling UpdateDeferredFromPotentialThenable(x, deferred).
-    ThenableStatus updateResult = updateDeferredFromPotentialThenable(exec, x, deferred);
-
-    // 9. ReturnIfAbrupt(updateResult).
-    if (exec->hadException())
-        return JSValue::encode(jsUndefined());
-
-    // 10. If 'updateResult' is not "not a thenable", return the result of calling
-    //     Invoke(deferred.[[Promise]], "then", (fulfillmentHandler, rejectionHandler)).
-    // NOTE: Invoke does not seem to be defined anywhere, so I am guessing here.
-    if (updateResult != NotAThenable) {
-        JSObject* deferredPromise = deferred->promise();
-    
-        JSValue thenValue = deferredPromise->get(exec, exec->vm().propertyNames->then);
-        if (exec->hadException())
-            return JSValue::encode(jsUndefined());
-
-        CallData thenCallData;
-        CallType thenCallType = getCallData(thenValue, thenCallData);
-        if (thenCallType == CallTypeNone)
-            return JSValue::encode(throwTypeError(exec));
-
-        MarkedArgumentBuffer arguments;
-        arguments.append(fulfillmentHandler);
-        arguments.append(rejectionHandler);
-
-        return JSValue::encode(call(exec, thenValue, thenCallType, thenCallData, deferredPromise, arguments));
-    }
-    
-    // 11. Return the result of calling the [[Call]] internal method of fulfillmentHandler
-    //     with undefined as thisArgument and a List containing x as argumentsList.
-    CallData fulfillmentHandlerCallData;
-    CallType fulfillmentHandlerCallType = getCallData(fulfillmentHandler, fulfillmentHandlerCallData);
-    ASSERT(fulfillmentHandlerCallType != CallTypeNone);
-    
-    MarkedArgumentBuffer fulfillmentHandlerArguments;
-    fulfillmentHandlerArguments.append(x);
-
-    return JSValue::encode(call(exec, fulfillmentHandler, fulfillmentHandlerCallType, fulfillmentHandlerCallData, jsUndefined(), fulfillmentHandlerArguments));
-}
-
-JSFunction* createPromiseResolutionHandlerFunction(VM& vm, JSGlobalObject* globalObject)
-{
-    return JSFunction::create(vm, globalObject, 1, ASCIILiteral("PromiseResolutionHandlerFunction"), promiseResolutionHandlerFunction);
-}
-
-// Reject Promise Functions
-
-static EncodedJSValue JSC_HOST_CALL rejectPromiseFunction(ExecState* exec)
-{
-    JSValue reason = exec->argument(0);
-    JSObject* F = exec->callee();
-    VM& vm = exec->vm();
-
-    // 1. Let 'promise' be the value of F's [[Promise]] internal slot.
-    JSPromise* promise = jsCast<JSPromise*>(F->get(exec, exec->vm().propertyNames->promisePrivateName));
-
-    // 2. Return the result of calling PromiseReject(promise, reason);
-    promise->reject(vm, reason);
-
-    return JSValue::encode(jsUndefined());
-}
-
-JSFunction* createRejectPromiseFunction(VM& vm, JSGlobalObject* globalObject)
-{
-    return JSFunction::create(vm, globalObject, 1, ASCIILiteral("RejectPromiseFunction"), rejectPromiseFunction);
-}
-
-// Resolve Promise Functions
-
-static EncodedJSValue JSC_HOST_CALL resolvePromiseFunction(ExecState* exec)
-{
-    JSValue resolution = exec->argument(0);
-    JSObject* F = exec->callee();
-    VM& vm = exec->vm();
-
-    // 1. Let 'promise' be the value of F's [[Promise]] internal slot.
-    JSPromise* promise = jsCast<JSPromise*>(F->get(exec, vm.propertyNames->promisePrivateName));
-
-    // 2. Return the result of calling PromiseResolve(promise, resolution);
-    promise->resolve(vm, resolution);
-
-    return JSValue::encode(jsUndefined());
-}
-
-JSFunction* createResolvePromiseFunction(VM& vm, JSGlobalObject* globalObject)
-{
-    return JSFunction::create(vm, globalObject, 1, ASCIILiteral("ResolvePromiseFunction"), resolvePromiseFunction);
-}
-
-// Thrower Functions
-
-static EncodedJSValue JSC_HOST_CALL throwerFunction(ExecState* exec)
-{
-    return JSValue::encode(exec->vm().throwException(exec, exec->argument(0)));
-}
-
-JSFunction* createThrowerFunction(VM& vm, JSGlobalObject* globalObject)
-{
-    return JSFunction::create(vm, globalObject, 1, ASCIILiteral("ThrowerFunction"), throwerFunction);
-}
-
-
-} // namespace JSC
-
-#endif // ENABLE(PROMISES)