Use EXTERNAL_REFERENCE instead of RUNTIME_ENTRY for deoptimization entries for ARM and MIPS

src/assembler.h

 // Copyright (c) 1994-2006 Sun Microsystems Inc.
 // 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.
 //
@@ skipping 327 matching lines @@
   // Apply a relocation by delta bytes
   INLINE(void apply(intptr_t delta));
 
   // Is the pointer this relocation info refers to coded like a plain pointer
   // or is it strange in some way (e.g. relative or patched into a series of
   // instructions).
   bool IsCodedSpecially();
 
   // Read/modify the code target in the branch/call instruction
   // this relocation applies to;
-  // can only be called if IsCodeTarget(rmode_) || rmode_ == RUNTIME_ENTRY
+  // can only be called if IsCodeTarget(rmode_) || rmode_ == RUNTIME_ENTRY ||
+  // rmode_ == EXTERNAL_REFERENCE
   INLINE(Address target_address());
   INLINE(void set_target_address(Address target,
                                  WriteBarrierMode mode = UPDATE_WRITE_BARRIER));
   INLINE(Object* target_object());
   INLINE(Handle<Object> target_object_handle(Assembler* origin));
   INLINE(Object** target_object_address());
   INLINE(void set_target_object(Object* target,
                                 WriteBarrierMode mode = UPDATE_WRITE_BARRIER));
   INLINE(JSGlobalPropertyCell* target_cell());
   INLINE(Handle<JSGlobalPropertyCell> target_cell_handle());
@@ skipping 612 matching lines @@
  public:
   NullCallWrapper() { }
   virtual ~NullCallWrapper() { }
   virtual void BeforeCall(int call_size) const { }
   virtual void AfterCall() const { }
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_ASSEMBLER_H_