Make Date.prototype.toGMTString an alias for Date.prototype.toUTCString

src/bootstrapper.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/bootstrapper.h"
 
 #include "src/accessors.h"
 #include "src/api-natives.h"
 #include "src/code-stubs.h"
 #include "src/extensions/externalize-string-extension.h"
@@ skipping 1321 matching lines @@
     JSObject::AddProperty(prototype, factory->constructor_string(), date_fun,
                           DONT_ENUM);
 
     // Install the Date.prototype methods.
     SimpleInstallFunction(prototype, "toString",
                           Builtins::kDatePrototypeToString, 0, false);
     SimpleInstallFunction(prototype, "toDateString",
                           Builtins::kDatePrototypeToDateString, 0, false);
     SimpleInstallFunction(prototype, "toTimeString",
                           Builtins::kDatePrototypeToTimeString, 0, false);
-    SimpleInstallFunction(prototype, "toGMTString",
-                          Builtins::kDatePrototypeToUTCString, 0, false);
     SimpleInstallFunction(prototype, "toISOString",
                           Builtins::kDatePrototypeToISOString, 0, false);
-    SimpleInstallFunction(prototype, "toUTCString",
-                          Builtins::kDatePrototypeToUTCString, 0, false);
+    Handle<JSFunction> to_utc_string =
+        SimpleInstallFunction(prototype, "toUTCString",
+                              Builtins::kDatePrototypeToUTCString, 0, false);
+    InstallFunction(prototype, to_utc_string,
+                    factory->InternalizeUtf8String("toGMTString"), DONT_ENUM);
     SimpleInstallFunction(prototype, "getDate", Builtins::kDatePrototypeGetDate,
                           0, true);
     SimpleInstallFunction(prototype, "setDate", Builtins::kDatePrototypeSetDate,
                           1, false);
     SimpleInstallFunction(prototype, "getDay", Builtins::kDatePrototypeGetDay,
                           0, true);
     SimpleInstallFunction(prototype, "getFullYear",
                           Builtins::kDatePrototypeGetFullYear, 0, true);
     SimpleInstallFunction(prototype, "setFullYear",
                           Builtins::kDatePrototypeSetFullYear, 3, false);
@@ skipping 2316 matching lines @@
 }
 
 
 // Called when the top-level V8 mutex is destroyed.
 void Bootstrapper::FreeThreadResources() {
   DCHECK(!IsActive());
 }
 
 }  // namespace internal
 }  // namespace v8