Fix --noopt to not optimize

test/mjsunit/noopt.js

Index: test/mjsunit/noopt.js
diff --git a/test/mjsunit/noopt.js b/test/mjsunit/noopt.js
new file mode 100644
index 0000000000000000000000000000000000000000..70aed326d4d705bc1e2fcd4f018ba28fbc8ff095
--- /dev/null
+++ b/test/mjsunit/noopt.js
@@ -0,0 +1,17 @@
+// Copyright 2017 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Flags: --allow-natives-syntax --noopt --no-always-opt
+
+
+// Check that --noopt actually works.
+
+function f() { return 42; }
+
+f();
+f();
+%OptimizeFunctionOnNextCall(f);
+f();
+
+assertUnoptimized(f);