[builtins] Unify the various versions of [[Call]] with a Call builtin.

src/runtime/runtime-function.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/accessors.h"
 #include "src/arguments.h"
 #include "src/compiler.h"
 #include "src/cpu-profiler.h"
 #include "src/deoptimizer.h"
 #include "src/frames-inl.h"
 #include "src/isolate-inl.h"
 #include "src/messages.h"
 
 namespace v8 {
 namespace internal {
 
+// TODO(bmeurer): This is an awful hack resulting from our inability to decide
+// who's responsible for doing the receiver patching. By any means, we really
+// need to kill this runtime function and just do things right instead!!
 RUNTIME_FUNCTION(Runtime_IsSloppyModeFunction) {
   SealHandleScope shs(isolate);
   DCHECK(args.length() == 1);
   CONVERT_ARG_CHECKED(JSReceiver, callable, 0);
   if (!callable->IsJSFunction()) {
     HandleScope scope(isolate);
     Handle<JSFunction> delegate;
     ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
         isolate, delegate,
         Execution::GetFunctionDelegate(isolate, Handle<JSReceiver>(callable)));
@@ skipping 626 matching lines @@
 
 
 RUNTIME_FUNCTION(Runtime_ThrowStrongModeTooFewArguments) {
   HandleScope scope(isolate);
   DCHECK(args.length() == 0);
   THROW_NEW_ERROR_RETURN_FAILURE(isolate,
                                  NewTypeError(MessageTemplate::kStrongArity));
 }
 }  // namespace internal
 }  // namespace v8