Move common static helpers from codegen to the macro-assembler files.

src/x64/codegen-x64.cc

Index: src/x64/codegen-x64.cc
===================================================================
--- src/x64/codegen-x64.cc	(revision 5806)
+++ src/x64/codegen-x64.cc	(working copy)
@@ -568,10 +568,10 @@
 
 void CodeGenerator::LoadGlobal() {
   if (in_spilled_code()) {
-    frame_->EmitPush(GlobalObject());
+    frame_->EmitPush(GlobalObjectOperand());
   } else {
     Result temp = allocator_->Allocate();
-    __ movq(temp.reg(), GlobalObject());
+    __ movq(temp.reg(), GlobalObjectOperand());
     frame_->Push(&temp);
   }
 }
@@ -580,7 +580,7 @@
 void CodeGenerator::LoadGlobalReceiver() {
   Result temp = allocator_->Allocate();
   Register reg = temp.reg();
-  __ movq(reg, GlobalObject());
+  __ movq(reg, GlobalObjectOperand());
   __ movq(reg, FieldOperand(reg, GlobalObject::kGlobalReceiverOffset));
   frame_->Push(&temp);
 }
@@ -6062,7 +6062,7 @@
     __ movq(scratch2_,
             FieldOperand(scratch2_, GlobalObject::kGlobalContextOffset));
     __ cmpq(scratch1_,
-            CodeGenerator::ContextOperand(
+            ContextOperand(
                 scratch2_, Context::STRING_FUNCTION_PROTOTYPE_MAP_INDEX));
     __ j(not_equal, &false_result);
     // Set the bit in the map to indicate that it has been checked safe for
@@ -7219,7 +7219,7 @@
     // Push the builtins object found in the current global object.
     Result temp = allocator()->Allocate();
     ASSERT(temp.is_valid());
-    __ movq(temp.reg(), GlobalObject());
+    __ movq(temp.reg(), GlobalObjectOperand());
     __ movq(temp.reg(),
             FieldOperand(temp.reg(), GlobalObject::kBuiltinsOffset));
     frame_->Push(&temp);