Add --no-background-compilation to tests that expect to run code in optimized form

tests/language/deoptimized_function_on_stack_test.dart

 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10
+// VMOptions=--optimization-counter-threshold=10 --no-background-compilation
 
 import "package:expect/expect.dart";
 
 // This is a test for deoptimization infrastructure and to reproduce the
 // failure from bug 5442338.
 
 main() {
   warmup();
   runTest();
 }
@@ skipping 35 matching lines @@
 
 
 class A {
   foo() { return 1; }
 }
 
 
 class B {
   foo() { return 2; }
 }