[runtime] Rewrite Function.prototype.toString in C++.

src/elements.cc

 // Copyright 2012 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/elements.h"
 
 #include "src/arguments.h"
 #include "src/conversions.h"
 #include "src/factory.h"
 #include "src/messages.h"
@@ skipping 410 matching lines @@
 
 
 static void TraceTopFrame(Isolate* isolate) {
   StackFrameIterator it(isolate);
   if (it.done()) {
     PrintF("unknown location (no JavaScript frames present)");
     return;
   }
   StackFrame* raw_frame = it.frame();
   if (raw_frame->is_internal()) {
-    Code* apply_builtin = isolate->builtins()->builtin(
-        Builtins::kFunctionApply);
+    Code* apply_builtin =
+        isolate->builtins()->builtin(Builtins::kFunctionPrototypeApply);
     if (raw_frame->unchecked_code() == apply_builtin) {
       PrintF("apply from ");
       it.Advance();
       raw_frame = it.frame();
     }
   }
   JavaScriptFrame::PrintTop(isolate, stdout, false, true);
 }
 
 
@@ skipping 1942 matching lines @@
     }
   }
 
   DCHECK(j == result_len);
   return result_array;
 }
 
 ElementsAccessor** ElementsAccessor::elements_accessors_ = NULL;
 }  // namespace internal
 }  // namespace v8