[es6] Initial steps towards a correct implementation of IsCallable.

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/bootstrapper.h"
 #include "src/conversions.h"
 #include "src/debug/debug.h"
 #include "src/frames-inl.h"
 #include "src/messages.h"
-#include "src/parser.h"
-#include "src/prettyprinter.h"
 
 namespace v8 {
 namespace internal {
 
 RUNTIME_FUNCTION(Runtime_CheckIsBootstrapping) {
   SealHandleScope shs(isolate);
   DCHECK(args.length() == 0);
   RUNTIME_ASSERT(isolate->bootstrapper()->IsActive());
   return isolate->heap()->undefined_value();
 }
@@ skipping 225 matching lines @@
     RETURN_FAILURE_ON_EXCEPTION(
         isolate, isolate->CaptureAndSetDetailedStackTrace(error_object));
     // Capture a simple stack trace for the stack property.
     RETURN_FAILURE_ON_EXCEPTION(
         isolate, isolate->CaptureAndSetSimpleStackTrace(error_object, caller));
   }
   return isolate->heap()->undefined_value();
 }
 
 
-RUNTIME_FUNCTION(Runtime_RenderCallSite) {
-  HandleScope scope(isolate);
-  DCHECK(args.length() == 0);
-  MessageLocation location;
-  if (!isolate->ComputeLocation(&location)) {
-    return isolate->heap()->empty_string();
-  }
-
-  Zone zone;
-  base::SmartPointer<ParseInfo> info(
-      location.function()->shared()->is_function()
-          ? new ParseInfo(&zone, location.function())
-          : new ParseInfo(&zone, location.script()));
-
-  if (!Parser::ParseStatic(info.get())) {
-    isolate->clear_pending_exception();
-    return isolate->heap()->empty_string();
-  }
-  CallPrinter printer(isolate, &zone);
-  const char* string = printer.Print(info->literal(), location.start_pos());
-  return *isolate->factory()->NewStringFromAsciiChecked(string);
-}
-
-
 RUNTIME_FUNCTION(Runtime_MessageGetStartPosition) {
   SealHandleScope shs(isolate);
   DCHECK(args.length() == 1);
   CONVERT_ARG_CHECKED(JSMessageObject, message, 0);
   return Smi::FromInt(message->start_position());
 }
 
 
 RUNTIME_FUNCTION(Runtime_MessageGetScript) {
   SealHandleScope shs(isolate);
@@ skipping 125 matching lines @@
 }
 
 
 RUNTIME_FUNCTION(Runtime_GetCodeStubExportsObject) {
   HandleScope shs(isolate);
   return isolate->heap()->code_stub_exports_object();
 }
 
 }  // namespace internal
 }  // namespace v8