Unify deoptimizer for JavaScript frames.

src/x64/frames-x64.cc

 // 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 25 matching lines @@
 
 namespace v8 {
 namespace internal {
 
 
 Address ExitFrame::ComputeStackPointer(Address fp) {
   return Memory::Address_at(fp + ExitFrameConstants::kSPOffset);
 }
 
 
+Register JavaScriptFrame::fp_register() { return rbp; }
+Register JavaScriptFrame::context_register() { return rsi; }
+
+
 Register StubFailureTrampolineFrame::fp_register() { return rbp; }
 Register StubFailureTrampolineFrame::context_register() { return rsi; }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64