Merge r7516, r7541 into 3.1 branch.

src/frames.h

Index: src/frames.h
===================================================================
--- src/frames.h	(revision 7542)
+++ src/frames.h	(working copy)
@@ -449,15 +449,12 @@
   inline void set_receiver(Object* value);
 
   // Access the parameters.
-  Object* GetParameter(int index) const;
-  int ComputeParametersCount() const;
+  inline Address GetParameterSlot(int index) const;
+  inline Object* GetParameter(int index) const;
+  inline int ComputeParametersCount() const {
+    return GetNumberOfIncomingArguments();
+  }
 
-  // Temporary way of getting access to the number of parameters
-  // passed on the stack by the caller. Once argument adaptor frames
-  // has been introduced on ARM, this number will always match the
-  // computed parameters count.
-  int GetProvidedParametersCount() const;
-
   // Check if this frame is a constructor frame invoked through 'new'.
   bool IsConstructor() const;
 
@@ -494,6 +491,8 @@
 
   virtual Address GetCallerStackPointer() const;
 
+  virtual int GetNumberOfIncomingArguments() const;
+
   // Garbage collection support. Iterates over incoming arguments,
   // receiver, and any callee-saved registers.
   void IterateArguments(ObjectVisitor* v) const;
@@ -554,6 +553,10 @@
   explicit ArgumentsAdaptorFrame(StackFrameIterator* iterator)
       : JavaScriptFrame(iterator) { }
 
+  virtual int GetNumberOfIncomingArguments() const {
+    return Smi::cast(GetExpression(0))->value();
+  }
+
   virtual Address GetCallerStackPointer() const;
 
  private: