Remove several JSFunction delegator functions.

src/debug/debug-frames.cc

 // Copyright 2015 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/debug/debug-frames.h"
 
 #include "src/frames-inl.h"
 
 namespace v8 {
 namespace internal {
@@ skipping 188 matching lines @@
 
 
 int DebugFrameHelper::FindIndexedNonNativeFrame(JavaScriptFrameIterator* it,
                                                 int index) {
   int count = -1;
   for (; !it->done(); it->Advance()) {
     List<FrameSummary> frames(FLAG_max_inlining_levels + 1);
     it->frame()->Summarize(&frames);
     for (int i = frames.length() - 1; i >= 0; i--) {
       // Omit functions from native and extension scripts.
-      if (!frames[i].function()->IsSubjectToDebugging()) continue;
+      if (!frames[i].function()->shared()->IsSubjectToDebugging()) continue;
       if (++count == index) return i;
     }
   }
   return -1;
 }
 
 
 }  // namespace internal
 }  // namespace v8