[stubs] A new approach to TF stubs

src/runtime/runtime-internal.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/ast/prettyprinter.h"
 #include "src/bootstrapper.h"
 #include "src/conversions.h"
@@ skipping 368 matching lines @@
   return isolate->heap()->undefined_value();
 }
 
 
 RUNTIME_FUNCTION(Runtime_HarmonyToString) {
   // TODO(caitp): Delete this runtime method when removing --harmony-tostring
   return isolate->heap()->ToBoolean(FLAG_harmony_tostring);
 }
 
 
-RUNTIME_FUNCTION(Runtime_GetTypeFeedbackVector) {
-  SealHandleScope shs(isolate);
-  DCHECK(args.length() == 1);
-  CONVERT_ARG_CHECKED(JSFunction, function, 0);
-  return function->shared()->feedback_vector();
-}
-
-
-RUNTIME_FUNCTION(Runtime_GetCallerJSFunction) {
-  SealHandleScope shs(isolate);
-  StackFrameIterator it(isolate);
-  RUNTIME_ASSERT(it.frame()->type() == StackFrame::STUB);
-  it.Advance();
-  RUNTIME_ASSERT(it.frame()->type() == StackFrame::JAVA_SCRIPT);
-  return JavaScriptFrame::cast(it.frame())->function();
-}
-
-
-RUNTIME_FUNCTION(Runtime_GetCodeStubExportsObject) {
-  HandleScope shs(isolate);
-  return isolate->heap()->code_stub_exports_object();
-}
-
-
 namespace {
 
 Handle<String> RenderCallSite(Isolate* isolate, Handle<Object> object) {
   MessageLocation location;
   if (isolate->ComputeLocation(&location)) {
     Zone zone;
     base::SmartPointer<ParseInfo> info(
         location.function()->shared()->is_function()
             ? new ParseInfo(&zone, location.function())
             : new ParseInfo(&zone, location.script()));
@@ skipping 25 matching lines @@
   HandleScope scope(isolate);
   DCHECK_EQ(1, args.length());
   CONVERT_ARG_HANDLE_CHECKED(Object, object, 0);
   Handle<String> callsite = RenderCallSite(isolate, object);
   THROW_NEW_ERROR_RETURN_FAILURE(
       isolate, NewTypeError(MessageTemplate::kNotConstructor, callsite));
 }
 
 }  // namespace internal
 }  // namespace v8