Support inlining at call-sites with mismatched number of arguments.

src/deoptimizer.h

Index: src/deoptimizer.h
diff --git a/src/deoptimizer.h b/src/deoptimizer.h
index 284676c36eeef1152ef3731d716240b5058aeb25..bee0209c74a597f244b6677b06840c4b649e57f7 100644
--- a/src/deoptimizer.h
+++ b/src/deoptimizer.h
@@ -119,6 +119,9 @@ class Deoptimizer : public Malloced {
 
   int output_count() const { return output_count_; }
 
+  // Number of created JS frames. Not all created frames are necessarily JS.
+  int jsframes_count() const { return jsframes_count_; }
+
   static Deoptimizer* New(JSFunction* function,
                           BailoutType type,
                           unsigned bailout_id,
@@ -272,6 +275,8 @@ class Deoptimizer : public Malloced {
   void DoComputeOutputFrames();
   void DoComputeOsrOutputFrame();
   void DoComputeFrame(TranslationIterator* iterator, int frame_index);
+  void DoComputeArgumentsAdaptorFrame(TranslationIterator* iterator,
+                                      int frame_index);
   void DoTranslateCommand(TranslationIterator* iterator,
                           int frame_index,
                           unsigned output_offset);
@@ -319,6 +324,8 @@ class Deoptimizer : public Malloced {
   FrameDescription* input_;
   // Number of output frames.
   int output_count_;
+  // Number of output js frames.
+  int jsframes_count_;
   // Array of output frame descriptions.
   FrameDescription** output_;
 
@@ -542,6 +549,7 @@ class Translation BASE_EMBEDDED {
   enum Opcode {
     BEGIN,
     FRAME,
+    ARGUMENTS_ADAPTOR_FRAME,
     REGISTER,
     INT32_REGISTER,
     DOUBLE_REGISTER,
@@ -567,6 +575,7 @@ class Translation BASE_EMBEDDED {
 
   // Commands.
   void BeginFrame(int node_id, int literal_id, unsigned height);
+  void BeginArgumentsAdaptorFrame(int literal_id, unsigned height);
   void StoreRegister(Register reg);
   void StoreInt32Register(Register reg);
   void StoreDoubleRegister(DoubleRegister reg);