Make whether or not a Code object should be created by masm explicit

src/mips64/macro-assembler-mips64.h

Index: src/mips64/macro-assembler-mips64.h
diff --git a/src/mips64/macro-assembler-mips64.h b/src/mips64/macro-assembler-mips64.h
index 797ddcdfe09aca40d01847aa899d2ad173d2b49c..e37152a4f44f46c0183253e66a0fe72043d43da1 100644
--- a/src/mips64/macro-assembler-mips64.h
+++ b/src/mips64/macro-assembler-mips64.h
@@ -169,11 +169,8 @@ inline MemOperand CFunctionArgumentOperand(int index) {
 // MacroAssembler implements a collection of frequently used macros.
 class MacroAssembler: public Assembler {
  public:
-  // The isolate parameter can be NULL if the macro assembler should
-  // not use isolate-dependent functionality. In this case, it's the
-  // responsibility of the caller to never invoke such function on the
-  // macro assembler.
-  MacroAssembler(Isolate* isolate, void* buffer, int size);
+  MacroAssembler(Isolate* isolate, void* buffer, int size,
+                 bool create_code_object);
 
   // Arguments macros.
 #define COND_TYPED_ARGS Condition cond, Register r1, const Operand& r2