Simplify handler pushing.

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 1156 matching lines @@
   }
 
   accumulator->Add("}\n\n");
 }
 
 
 void EntryFrame::Iterate(ObjectVisitor* v) const {
   StackHandlerIterator it(this, top_handler());
   ASSERT(!it.done());
   StackHandler* handler = it.handler();
-  ASSERT(handler->is_entry());
+  ASSERT(handler->is_js_entry());
   handler->Iterate(v, LookupCode());
 #ifdef DEBUG
   // Make sure that the entry frame does not contain more than one
   // stack handler.
   it.Advance();
   ASSERT(it.done());
 #endif
   IteratePc(v, pc_address(), LookupCode());
 }
 
@@ skipping 202 matching lines @@
   ZoneList<StackFrame*> list(10);
   for (StackFrameIterator it; !it.done(); it.Advance()) {
     StackFrame* frame = AllocateFrameCopy(it.frame());
     list.Add(frame);
   }
   return list.ToVector();
 }
 
 
 } }  // namespace v8::internal