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diff --git a/Source/JavaScriptCore/runtime/IntlCollatorConstructor.cpp b/Source/JavaScriptCore/runtime/IntlCollatorConstructor.cpp
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+++ b/Source/JavaScriptCore/runtime/IntlCollatorConstructor.cpp
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+/*
+ * Copyright (C) 2015 Andy VanWagoner (thetalecrafter@gmail.com)
+ * Copyright (C) 2015 Sukolsak Sakshuwong (sukolsak@gmail.com)
+ * Copyright (C) 2016 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 "IntlCollatorConstructor.h"
+
+#if ENABLE(INTL)
+
+#include "Error.h"
+#include "IntlCollator.h"
+#include "IntlCollatorPrototype.h"
+#include "IntlObject.h"
+#include "JSCInlines.h"
+#include "Lookup.h"
+
+namespace JSC {
+
+STATIC_ASSERT_IS_TRIVIALLY_DESTRUCTIBLE(IntlCollatorConstructor);
+
+static EncodedJSValue JSC_HOST_CALL IntlCollatorConstructorFuncSupportedLocalesOf(ExecState*);
+
+}
+
+#include "IntlCollatorConstructor.lut.h"
+
+namespace JSC {
+
+const ClassInfo IntlCollatorConstructor::s_info = { "Function", &InternalFunction::s_info, &collatorConstructorTable, CREATE_METHOD_TABLE(IntlCollatorConstructor) };
+
+/* Source for IntlCollatorConstructor.lut.h
+@begin collatorConstructorTable
+  supportedLocalesOf             IntlCollatorConstructorFuncSupportedLocalesOf             DontEnum|Function 1
+@end
+*/
+
+IntlCollatorConstructor* IntlCollatorConstructor::create(VM& vm, Structure* structure, IntlCollatorPrototype* collatorPrototype, Structure* collatorStructure)
+{
+    IntlCollatorConstructor* constructor = new (NotNull, allocateCell<IntlCollatorConstructor>(vm.heap)) IntlCollatorConstructor(vm, structure);
+    constructor->finishCreation(vm, collatorPrototype, collatorStructure);
+    return constructor;
+}
+
+Structure* IntlCollatorConstructor::createStructure(VM& vm, JSGlobalObject* globalObject, JSValue prototype)
+{
+    return Structure::create(vm, globalObject, prototype, TypeInfo(ObjectType, StructureFlags), info());
+}
+
+IntlCollatorConstructor::IntlCollatorConstructor(VM& vm, Structure* structure)
+    : InternalFunction(vm, structure)
+{
+}
+
+void IntlCollatorConstructor::finishCreation(VM& vm, IntlCollatorPrototype* collatorPrototype, Structure* collatorStructure)
+{
+    Base::finishCreation(vm, ASCIILiteral("Collator"));
+    putDirectWithoutTransition(vm, vm.propertyNames->prototype, collatorPrototype, DontEnum | DontDelete | ReadOnly);
+    putDirectWithoutTransition(vm, vm.propertyNames->length, jsNumber(0), ReadOnly | DontEnum | DontDelete);
+    m_collatorStructure.set(vm, this, collatorStructure);
+}
+
+static EncodedJSValue JSC_HOST_CALL constructIntlCollator(ExecState* state)
+{
+    VM& vm = state->vm();
+    auto scope = DECLARE_THROW_SCOPE(vm);
+    // 10.1.2 Intl.Collator ([locales [, options]]) (ECMA-402 2.0)
+    // 1. If NewTarget is undefined, let newTarget be the active function object, else let newTarget be NewTarget.
+    // 2. Let collator be OrdinaryCreateFromConstructor(newTarget, %CollatorPrototype%).
+    // 3. ReturnIfAbrupt(collator).
+    Structure* structure = InternalFunction::createSubclassStructure(state, state->newTarget(), jsCast<IntlCollatorConstructor*>(state->jsCallee())->collatorStructure());
+    RETURN_IF_EXCEPTION(scope, encodedJSValue());
+    IntlCollator* collator = IntlCollator::create(vm, structure);
+    ASSERT(collator);
+
+    // 4. Return InitializeCollator(collator, locales, options).
+    scope.release();
+    collator->initializeCollator(*state, state->argument(0), state->argument(1));
+    return JSValue::encode(collator);
+}
+
+static EncodedJSValue JSC_HOST_CALL callIntlCollator(ExecState* state)
+{
+    // 10.1.2 Intl.Collator ([locales [, options]]) (ECMA-402 2.0)
+    // 1. If NewTarget is undefined, let newTarget be the active function object, else let newTarget be NewTarget.
+    // NewTarget is always undefined when called as a function.
+
+    VM& vm = state->vm();
+    IntlCollatorConstructor* callee = jsCast<IntlCollatorConstructor*>(state->jsCallee());
+
+    // FIXME: Collator does not get the workaround for ECMA-402 1.0 compatibility.
+    // https://bugs.webkit.org/show_bug.cgi?id=153679
+
+    // 2. Let collator be OrdinaryCreateFromConstructor(newTarget, %CollatorPrototype%).
+    // 3. ReturnIfAbrupt(collator).
+    IntlCollator* collator = IntlCollator::create(vm, callee->collatorStructure());
+    ASSERT(collator);
+
+    // 4. Return InitializeCollator(collator, locales, options).
+    collator->initializeCollator(*state, state->argument(0), state->argument(1));
+    return JSValue::encode(collator);
+}
+
+ConstructType IntlCollatorConstructor::getConstructData(JSCell*, ConstructData& constructData)
+{
+    constructData.native.function = constructIntlCollator;
+    return ConstructType::Host;
+}
+
+CallType IntlCollatorConstructor::getCallData(JSCell*, CallData& callData)
+{
+    callData.native.function = callIntlCollator;
+    return CallType::Host;
+}
+
+EncodedJSValue JSC_HOST_CALL IntlCollatorConstructorFuncSupportedLocalesOf(ExecState* state)
+{
+    VM& vm = state->vm();
+    auto scope = DECLARE_THROW_SCOPE(vm);
+    // 10.2.2 Intl.Collator.supportedLocalesOf(locales [, options]) (ECMA-402 2.0)
+
+    // 1. Let requestedLocales be CanonicalizeLocaleList(locales).
+    Vector<String> requestedLocales = canonicalizeLocaleList(*state, state->argument(0));
+
+    // 2. ReturnIfAbrupt(requestedLocales).
+    RETURN_IF_EXCEPTION(scope, encodedJSValue());
+
+    // 3. Return SupportedLocales(%Collator%.[[availableLocales]], requestedLocales, options).
+    JSGlobalObject* globalObject = state->jsCallee()->globalObject();
+    scope.release();
+    return JSValue::encode(supportedLocales(*state, globalObject->intlCollatorAvailableLocales(), requestedLocales, state->argument(1)));
+}
+
+void IntlCollatorConstructor::visitChildren(JSCell* cell, SlotVisitor& visitor)
+{
+    IntlCollatorConstructor* thisObject = jsCast<IntlCollatorConstructor*>(cell);
+    ASSERT_GC_OBJECT_INHERITS(thisObject, info());
+
+    Base::visitChildren(thisObject, visitor);
+
+    visitor.append(thisObject->m_collatorStructure);
+}
+
+} // namespace JSC
+
+#endif // ENABLE(INTL)