Reverted 3130-3131 since they don't work on mac.

src/x64/macro-assembler-x64.h

Index: src/x64/macro-assembler-x64.h
===================================================================
--- src/x64/macro-assembler-x64.h	(revision 3132)
+++ src/x64/macro-assembler-x64.h	(working copy)
@@ -106,16 +106,16 @@
   void EnterConstructFrame() { EnterFrame(StackFrame::CONSTRUCT); }
   void LeaveConstructFrame() { LeaveFrame(StackFrame::CONSTRUCT); }
 
-  // Enter specific kind of exit frame; either in normal or
-  // debug mode. Expects the number of arguments in register rax and
+  // Enter specific kind of exit frame; either EXIT or
+  // EXIT_DEBUG. Expects the number of arguments in register rax and
   // sets up the number of arguments in register rdi and the pointer
   // to the first argument in register rsi.
-  void EnterExitFrame(ExitFrame::Mode mode, int result_size = 1);
+  void EnterExitFrame(StackFrame::Type type, int result_size = 1);
 
   // Leave the current exit frame. Expects/provides the return value in
   // register rax:rdx (untouched) and the pointer to the first
   // argument in register rsi.
-  void LeaveExitFrame(ExitFrame::Mode mode, int result_size = 1);
+  void LeaveExitFrame(StackFrame::Type type, int result_size = 1);
 
 
   // ---------------------------------------------------------------------------