Revert "frames.h/cc cleanup"

src/frames.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 150 matching lines @@
     handler_ = StackHandler::FromAddress(
         Isolate::handler(thread_));
   } else {
     ASSERT(fp_ != NULL);
     state.fp = fp_;
     state.sp = sp_;
     state.pc_address = ResolveReturnAddressLocation(
         reinterpret_cast<Address*>(StandardFrame::ComputePCAddress(fp_)));
     type = StackFrame::ComputeType(isolate(), &state);
   }
+  if (SingletonFor(type) == NULL) return;
   frame_ = SingletonFor(type, &state);
 }
 
 
 StackFrame* StackFrameIterator::SingletonFor(StackFrame::Type type,
                                              StackFrame::State* state) {
   if (type == StackFrame::NONE) return NULL;
   StackFrame* result = SingletonFor(type);
   ASSERT(result != NULL);
   result->state_ = *state;
@@ skipping 1312 matching lines @@
   ZoneList<StackFrame*> list(10, zone);
   for (StackFrameIterator it(isolate); !it.done(); it.Advance()) {
     StackFrame* frame = AllocateFrameCopy(it.frame(), zone);
     list.Add(frame, zone);
   }
   return list.ToVector();
 }
 
 
 } }  // namespace v8::internal