Cleaned up some debugger stuff on ia32 and x64

src/builtins.h

 // 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 72 matching lines @@
                                                                \
   /* Uses KeyedLoadIC_Initialize; must be after in list. */    \
   V(FunctionCall,               BUILTIN, UNINITIALIZED)        \
   V(FunctionApply,              BUILTIN, UNINITIALIZED)
 
 
 #ifdef ENABLE_DEBUGGER_SUPPORT
 // Define list of builtins used by the debugger implemented in assembly.
 #define BUILTIN_LIST_DEBUG_A(V)                                \
   V(Return_DebugBreak,          BUILTIN, DEBUG_BREAK)          \
-  V(Return_DebugBreakEntry,     BUILTIN, DEBUG_BREAK)          \
   V(ConstructCall_DebugBreak,   BUILTIN, DEBUG_BREAK)          \
   V(StubNoRegisters_DebugBreak, BUILTIN, DEBUG_BREAK)          \
   V(LoadIC_DebugBreak,          LOAD_IC, DEBUG_BREAK)          \
   V(KeyedLoadIC_DebugBreak,     KEYED_LOAD_IC, DEBUG_BREAK)    \
   V(StoreIC_DebugBreak,         STORE_IC, DEBUG_BREAK)         \
   V(KeyedStoreIC_DebugBreak,    KEYED_STORE_IC, DEBUG_BREAK)
 #else
 #define BUILTIN_LIST_DEBUG_A(V)
 #endif
 
@@ skipping 112 matching lines @@
   static void Generate_JSConstructEntryTrampoline(MacroAssembler* masm);
   static void Generate_ArgumentsAdaptorTrampoline(MacroAssembler* masm);
 
   static void Generate_FunctionCall(MacroAssembler* masm);
   static void Generate_FunctionApply(MacroAssembler* masm);
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_BUILTINS_H_