Fix jump targets on ARM to merge virtual frames (really this time)....

src/arm/codegen-arm.h

 // Copyright 2010 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 83 matching lines @@
   // If the reference is not consumed, it is left in place under its value.
   void GetValue();
 
   // Generate code to store the value on top of the expression stack in the
   // reference.  The reference is expected to be immediately below the value
   // on the expression stack.  The  value is stored in the location specified
   // by the reference, and is left on top of the stack, after the reference
   // is popped from beneath it (unloaded).
   void SetValue(InitState init_state);
 
+  // This is in preparation for something that uses the reference on the stack.
+  // If we need this reference afterwards get then dup it now.  Otherwise mark
+  // it as used.
+  inline void DupIfPersist();
+
  private:
   CodeGenerator* cgen_;
   Expression* expression_;
   Type type_;
   // Keep the reference on the stack after get, so it can be used by set later.
   bool persist_after_get_;
 };
 
 
 // -------------------------------------------------------------------------
@@ skipping 810 matching lines @@
     return ObjectBits::encode(object_.code()) |
            OffsetBits::encode(offset_.code()) |
            ScratchBits::encode(scratch_.code());
   }
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_ARM_CODEGEN_ARM_H_