Refactored the code for entering and leaving exit frames (calls...

src/macro-assembler-ia32.h

Index: src/macro-assembler-ia32.h
===================================================================
--- src/macro-assembler-ia32.h	(revision 353)
+++ src/macro-assembler-ia32.h	(working copy)
@@ -86,12 +86,14 @@
   // ---------------------------------------------------------------------------
   // Activation frames
 
-  // Enter or exit a stack frame of the given type. Cannot be used to
-  // construct or leave JavaScript frames.
   void EnterInternalFrame();
-  void ExitInternalFrame();
+  void LeaveInternalFrame();
 
+  // Enter specific kind of exit frame; either EXIT or EXIT_DEBUG.
+  void EnterExitFrame(StackFrame::Type type);
+  void LeaveExitFrame();
 
+
   // ---------------------------------------------------------------------------
   // JavaScript invokes
 
@@ -198,6 +200,10 @@
   // Jump to the builtin routine.
   void JumpToBuiltin(const ExternalReference& ext);
 
+
+  // ---------------------------------------------------------------------------
+  // Utilities
+
   void Ret();
 
   struct Unresolved {