Optimize functions on a second thread.

src/objects-inl.h

Index: src/objects-inl.h
diff --git a/src/objects-inl.h b/src/objects-inl.h
index e48787b03856d7e24a6cd8e496f525d0bab94a29..145673f1cf4350208336855cc0e14194e7e36b60 100644
--- a/src/objects-inl.h
+++ b/src/objects-inl.h
@@ -4249,6 +4249,18 @@ bool JSFunction::IsMarkedForLazyRecompilation() {
 }
 
 
+bool JSFunction::IsMarkedForParallelRecompilation() {
+  return code() ==
+      GetIsolate()->builtins()->builtin(Builtins::kParallelRecompile);
+}
+
+
+bool JSFunction::IsInRecompileQueue() {
+  return code() == GetIsolate()->builtins()->builtin(
+      Builtins::kInRecompileQueue);
+}
+
+
 Code* JSFunction::code() {
   return Code::cast(unchecked_code());
 }