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

tests/language/deoptimized_function_on_stack_test.dart

Index: tests/language/deoptimized_function_on_stack_test.dart
diff --git a/tests/language/deoptimized_function_on_stack_test.dart b/tests/language/deoptimized_function_on_stack_test.dart
index 3ef5cb4c059b35ce1e21281f648b4a3c26b7b9d5..f64fedc035fa4f2230c5547b8aca12bee5309d07 100644
--- a/tests/language/deoptimized_function_on_stack_test.dart
+++ b/tests/language/deoptimized_function_on_stack_test.dart
@@ -1,7 +1,7 @@
 // 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";