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

test/cctest/test-heap.cc

Index: test/cctest/test-heap.cc
diff --git a/test/cctest/test-heap.cc b/test/cctest/test-heap.cc
index c7625888b1103fc9640db86771534046d636f9f1..cab370375e32f1c5b32b41ce827cc4316b540c6e 100644
--- a/test/cctest/test-heap.cc
+++ b/test/cctest/test-heap.cc
@@ -4946,7 +4946,7 @@ TEST(NextCodeLinkIsWeak) {
 
 static Handle<Code> DummyOptimizedCode(Isolate* isolate) {
   i::byte buffer[i::Assembler::kMinimalBufferSize];
-  MacroAssembler masm(isolate, buffer, sizeof(buffer));
+  MacroAssembler masm(isolate, buffer, sizeof(buffer), true);
   CodeDesc desc;
   masm.Push(isolate->factory()->undefined_value());
   masm.Drop(1);