This patch much improves our tracking of whether function is...

src/code-stubs.cc

 // Copyright 2006-2008 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 40 matching lines @@
 
     // Generate the code for the stub.
     masm.set_generating_stub(true);
     Generate(&masm);
 
     // Create the code object.
     CodeDesc desc;
     masm.GetCode(&desc);
 
     // Copy the generated code into a heap object, and store the major key.
-    Code::Flags flags = Code::ComputeFlags(Code::STUB);
+    Code::Flags flags = Code::ComputeFlags(Code::STUB, InLoop());
     Handle<Code> code = Factory::NewCode(desc, NULL, flags, masm.CodeObject());
     code->set_major_key(MajorKey());
 
     // Add unresolved entries in the code to the fixup list.
     Bootstrapper::AddFixup(*code, &masm);
 
     LOG(CodeCreateEvent("Stub", *code, GetName()));
     Counters::total_stubs_code_size.Increment(code->instruction_size());
 
 #ifdef ENABLE_DISASSEMBLER
@@ skipping 61 matching lines @@
     case JSExit:
       return "JSExit";
     default:
       UNREACHABLE();
       return NULL;
   }
 }
 
 
 } }  // namespace v8::internal