Unify deoptimizer for JavaScript frames.

src/deoptimizer.h

 // Copyright 2012 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 389 matching lines @@
 
   // Fill the given output frame's registers to contain the failure handler
   // address and the number of parameters for a stub failure trampoline.
   void SetPlatformCompiledStubRegisters(FrameDescription* output_frame,
                                         CodeStubInterfaceDescriptor* desc);
 
   // Fill the given output frame's double registers with the original values
   // from the input frame's double registers.
   void CopyDoubleRegisters(FrameDescription* output_frame);
 
+  // Determines whether the input frame contains alignment padding by looking
+  // at the dynamic alignment state slot inside the frame.
+  bool HasAlignmentPadding(JSFunction* function);
+
   Isolate* isolate_;
   JSFunction* function_;
   Code* compiled_code_;
   unsigned bailout_id_;
   BailoutType bailout_type_;
   Address from_;
   int fp_to_sp_delta_;
   int has_alignment_padding_;
 
   // Input frame description.
@@ skipping 512 matching lines @@
   Object** expression_stack_;
   int source_position_;
 
   friend class Deoptimizer;
 };
 #endif
 
 } }  // namespace v8::internal
 
 #endif  // V8_DEOPTIMIZER_H_