Updates and fixes for MIPS support.

src/mips/virtual-frame-mips.h

Index: src/mips/virtual-frame-mips.h
===================================================================
--- src/mips/virtual-frame-mips.h	(revision 4259)
+++ src/mips/virtual-frame-mips.h	(working copy)
@@ -212,7 +212,7 @@
   MemOperand LocalAt(int index) {
     ASSERT(0 <= index);
     ASSERT(index < local_count());
-    return MemOperand(s8_fp, kLocal0Offset - index * kPointerSize);
+    return MemOperand(fp, kLocal0Offset - index * kPointerSize);
   }
 
   // Push a copy of the value of a local frame slot on top of the frame.
@@ -237,13 +237,13 @@
   void PushReceiverSlotAddress();
 
   // The function frame slot.
-  MemOperand Function() { return MemOperand(s8_fp, kFunctionOffset); }
+  MemOperand Function() { return MemOperand(fp, kFunctionOffset); }
 
   // Push the function on top of the frame.
   void PushFunction() { PushFrameSlotAt(function_index()); }
 
   // The context frame slot.
-  MemOperand Context() { return MemOperand(s8_fp, kContextOffset); }
+  MemOperand Context() { return MemOperand(fp, kContextOffset); }
 
   // Save the value of the cp register to the context frame slot.
   void SaveContextRegister();
@@ -257,8 +257,7 @@
     // Index -1 corresponds to the receiver.
     ASSERT(-1 <= index);  // -1 is the receiver.
     ASSERT(index <= parameter_count());
-    uint16_t a = 0;   // Number of argument slots.
-    return MemOperand(s8_fp, (1 + parameter_count() + a - index) *kPointerSize);
+    return MemOperand(fp, (1 + parameter_count() - index) * kPointerSize);
   }
 
   // Push a copy of the value of a parameter frame slot on top of the frame.
@@ -309,7 +308,6 @@
   // removes from) the stack.
   void InvokeBuiltin(Builtins::JavaScript id,
                      InvokeJSFlags flag,
-                     Result* arg_count_register,
                      int arg_count);
 
   // Call into an IC stub given the number of arguments it removes
@@ -318,16 +316,6 @@
   void CallCodeObject(Handle<Code> ic,
                       RelocInfo::Mode rmode,
                       int dropped_args);
-  void CallCodeObject(Handle<Code> ic,
-                      RelocInfo::Mode rmode,
-                      Result* arg,
-                      int dropped_args);
-  void CallCodeObject(Handle<Code> ic,
-                      RelocInfo::Mode rmode,
-                      Result* arg0,
-                      Result* arg1,
-                      int dropped_args,
-                      bool set_auto_args_slots = false);
 
   // Drop a number of elements from the top of the expression stack. May
   // emit code to affect the physical frame. Does not clobber any registers