Replaces Location::ToStackSlotAddress() with Location::ToStackSlotOffset()

runtime/vm/locations.h

Index: runtime/vm/locations.h
===================================================================
--- runtime/vm/locations.h	(revision 25072)
+++ runtime/vm/locations.h	(working copy)
@@ -281,8 +281,8 @@
     return payload() - kStackIndexBias;
   }
 
-  // Return a memory operand for stack slot locations.
-  Address ToStackSlotAddress() const;
+  // Returns the offset from the frame pointer for stack slot locations.
+  intptr_t ToStackSlotOffset() const;

[regis, 2013/07/17 16:35:19]

You could add this new function, while leaving ToStackSlotAddress() untouched.
The IA32 and X64 code generator could continue using the old one, while ARM and
MIPS could use the new one when the offset may be out of range (LoadFromOffset
and StoreToOffset are used instead).

 
   // Constants.
   static Location RegisterOrConstant(Value* value);