Deoptimizer support for hydrogen stubs that accept a variable number of arguments.

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 338 matching lines @@
   void DoComputeJSFrame(TranslationIterator* iterator, int frame_index);
   void DoComputeArgumentsAdaptorFrame(TranslationIterator* iterator,
                                       int frame_index);
   void DoComputeConstructStubFrame(TranslationIterator* iterator,
                                    int frame_index);
   void DoComputeAccessorStubFrame(TranslationIterator* iterator,
                                   int frame_index,
                                   bool is_setter_stub_frame);
   void DoComputeCompiledStubFrame(TranslationIterator* iterator,
                                   int frame_index);
+
+  enum DeoptimizerTranslatedValueType {
+    TRANSLATED_VALUE_IS_NATIVE,
+    TRANSLATED_VALUE_IS_TAGGED
+  };
+
   void DoTranslateCommand(TranslationIterator* iterator,
-                          int frame_index,
-                          unsigned output_offset);
+      int frame_index,
+      unsigned output_offset,
+      DeoptimizerTranslatedValueType value_type = TRANSLATED_VALUE_IS_TAGGED);
+
   // Translate a command for OSR.  Updates the input offset to be used for
   // the next command.  Returns false if translation of the command failed
   // (e.g., a number conversion failed) and may or may not have updated the
   // input offset.
   bool DoOsrTranslateCommand(TranslationIterator* iterator,
                              int* input_offset);
 
   unsigned ComputeInputFrameSize() const;
   unsigned ComputeFixedSize(JSFunction* function) const;
 
@@ skipping 523 matching lines @@
   Object** expression_stack_;
   int source_position_;
 
   friend class Deoptimizer;
 };
 #endif
 
 } }  // namespace v8::internal
 
 #endif  // V8_DEOPTIMIZER_H_