Simplify calling generated code from the runtime.

src/builtins.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * 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
@@ skipping 413 matching lines @@
 }
 
 
 MUST_USE_RESULT static MaybeObject* CallJsBuiltin(
     Isolate* isolate,
     const char* name,
     BuiltinArguments<NO_EXTRA_ARGUMENTS> args) {
   HandleScope handleScope(isolate);
 
   Handle<Object> js_builtin =
-      GetProperty(Handle<JSObject>(
-          isolate->global_context()->builtins()),
-          name);
-  ASSERT(js_builtin->IsJSFunction());
-  Handle<JSFunction> function(Handle<JSFunction>::cast(js_builtin));
-  ScopedVector<Object**> argv(args.length() - 1);
-  int n_args = args.length() - 1;
-  for (int i = 0; i < n_args; i++) {
-    argv[i] = args.at<Object>(i + 1).location();
+      GetProperty(Handle<JSObject>(isolate->global_context()->builtins()),
+                  name);
+  Handle<JSFunction> function = Handle<JSFunction>::cast(js_builtin);
+  int argc = args.length() - 1;
+  ScopedVector<Handle<Object> > argv(argc);
+  for (int i = 0; i < argc; ++i) {
+    argv[i] = args.at<Object>(i + 1);
   }
   bool pending_exception;
   Handle<Object> result = Execution::Call(function,
                                           args.receiver(),
-                                          n_args,
+                                          argc,
                                           argv.start(),
                                           &pending_exception);
   if (pending_exception) return Failure::Exception();
   return *result;
 }
 
 
 BUILTIN(ArrayPush) {
   Heap* heap = isolate->heap();
   Object* receiver = *args.receiver();
@@ skipping 1303 matching lines @@
   return Handle<Code>(code_address);                        \
 }
 BUILTIN_LIST_C(DEFINE_BUILTIN_ACCESSOR_C)
 BUILTIN_LIST_A(DEFINE_BUILTIN_ACCESSOR_A)
 BUILTIN_LIST_DEBUG_A(DEFINE_BUILTIN_ACCESSOR_A)
 #undef DEFINE_BUILTIN_ACCESSOR_C
 #undef DEFINE_BUILTIN_ACCESSOR_A
 
 
 } }  // namespace v8::internal