Move final parts of class literal setup into a single runtime call

src/runtime/runtime-classes.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 <stdlib.h>
 #include <limits>
 
 #include "src/v8.h"
 
 #include "src/arguments.h"
@@ skipping 235 matching lines @@
   CONVERT_ARG_HANDLE_CHECKED(Name, name, 1);
   CONVERT_ARG_HANDLE_CHECKED(JSFunction, function, 2);
 
   RETURN_FAILURE_ON_EXCEPTION(isolate,
                               JSObject::DefinePropertyOrElementIgnoreAttributes(
                                   object, name, function, DONT_ENUM));
   return isolate->heap()->undefined_value();
 }
 
 
+RUNTIME_FUNCTION(Runtime_FinalizeClassDefinition) {
+  HandleScope scope(isolate);
+  DCHECK(args.length() == 2);
+  CONVERT_ARG_HANDLE_CHECKED(JSObject, constructor, 0);
+  CONVERT_ARG_HANDLE_CHECKED(JSObject, prototype, 1);
+
+  JSObject::MigrateSlowToFast(prototype, 0, "RuntimeToFastProperties");
+  JSObject::MigrateSlowToFast(constructor, 0, "RuntimeToFastProperties");
+
+  return *constructor;
+}
+
+
+RUNTIME_FUNCTION(Runtime_FinalizeClassDefinitionStrong) {
+  HandleScope scope(isolate);
+  DCHECK(args.length() == 2);
+  CONVERT_ARG_HANDLE_CHECKED(JSObject, constructor, 0);
+  CONVERT_ARG_HANDLE_CHECKED(JSObject, prototype, 1);
+
+  JSObject::MigrateSlowToFast(prototype, 0, "RuntimeToFastProperties");
+  JSObject::MigrateSlowToFast(constructor, 0, "RuntimeToFastProperties");
+
+  RETURN_FAILURE_ON_EXCEPTION(isolate, JSObject::Freeze(prototype));
+  Handle<Object> result;
+  ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, result,
+                                     JSObject::Freeze(constructor));
+  return *result;
+}
+
+
 RUNTIME_FUNCTION(Runtime_ClassGetSourceCode) {
   HandleScope shs(isolate);
   DCHECK(args.length() == 1);
   CONVERT_ARG_HANDLE_CHECKED(JSFunction, fun, 0);
 
   Handle<Object> script;
   ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
       isolate, script,
       Object::GetProperty(fun, isolate->factory()->class_script_symbol()));
   if (!script->IsScript()) {
@@ skipping 294 matching lines @@
   Handle<Object> result;
   ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
       isolate, result,
       Execution::Call(isolate, reflect, isolate->factory()->undefined_value(),
                       arraysize(argv), argv));
 
   return *result;
 }
 }  // namespace internal
 }  // namespace v8