[es6] Implement spec compliant ToName (actually ToPropertyKey).

src/runtime/runtime-object.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/runtime/runtime-utils.h"
 
 #include "src/arguments.h"
 #include "src/bootstrapper.h"
 #include "src/debug/debug.h"
 #include "src/messages.h"
@@ skipping 738 matching lines @@
     }
   }
   return isolate->heap()->false_value();
 }
 
 
 RUNTIME_FUNCTION(Runtime_HasProperty) {
   HandleScope scope(isolate);
   DCHECK(args.length() == 2);
   CONVERT_ARG_HANDLE_CHECKED(JSReceiver, receiver, 0);
-  CONVERT_ARG_HANDLE_CHECKED(Name, key, 1);
+  CONVERT_ARG_HANDLE_CHECKED(Object, key, 1);
 
-  Maybe<bool> maybe = JSReceiver::HasProperty(receiver, key);
+  Handle<Name> name;
+  ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, name,
+                                     Object::ToName(isolate, key));
+  Maybe<bool> maybe = JSReceiver::HasProperty(receiver, name);
   if (!maybe.IsJust()) return isolate->heap()->exception();
   return isolate->heap()->ToBoolean(maybe.FromJust());
 }
 
 
 RUNTIME_FUNCTION(Runtime_HasElement) {
   HandleScope scope(isolate);
   DCHECK(args.length() == 2);
   CONVERT_ARG_HANDLE_CHECKED(JSReceiver, receiver, 0);
   CONVERT_SMI_ARG_CHECKED(index, 1);
@@ skipping 702 matching lines @@
   HandleScope scope(isolate);
   DCHECK_EQ(1, args.length());
   CONVERT_ARG_HANDLE_CHECKED(Object, input, 0);
   Handle<Object> result;
   ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, result,
                                      Object::ToNumber(isolate, input));
   return *result;
 }
 
 
+RUNTIME_FUNCTION(Runtime_ToName) {
+  HandleScope scope(isolate);
+  DCHECK_EQ(1, args.length());
+  CONVERT_ARG_HANDLE_CHECKED(Object, input, 0);
+  Handle<Object> result;
+  ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, result,
+                                     Object::ToName(isolate, input));
+  return *result;
+}
+
+
 RUNTIME_FUNCTION(Runtime_StrictEquals) {
   SealHandleScope scope(isolate);
   DCHECK_EQ(2, args.length());
   CONVERT_ARG_CHECKED(Object, x, 0);
   CONVERT_ARG_CHECKED(Object, y, 1);
   // TODO(bmeurer): Change this at some point to return true/false instead.
   return Smi::FromInt(x->StrictEquals(y) ? EQUAL : NOT_EQUAL);
 }
 
 
@@ skipping 45 matching lines @@
   SealHandleScope scope(isolate);
   DCHECK_EQ(2, args.length());
   CONVERT_ARG_CHECKED(Object, object, 0);
   CONVERT_ARG_CHECKED(Object, prototype, 1);
   return isolate->heap()->ToBoolean(
       object->HasInPrototypeChain(isolate, prototype));
 }
 
 }  // namespace internal
 }  // namespace v8