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

tests/language/deferred_load_inval_code_test.dart

Index: tests/language/deferred_load_inval_code_test.dart
diff --git a/tests/language/deferred_load_inval_code_test.dart b/tests/language/deferred_load_inval_code_test.dart
index 88a3159a9d17d22301d78df68ac1266f3e501b94..41eacbb429346e425f8d1686f7390f435e2ad152 100644
--- a/tests/language/deferred_load_inval_code_test.dart
+++ b/tests/language/deferred_load_inval_code_test.dart
@@ -3,7 +3,7 @@
 // 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=100
+// VMOptions=--optimization-counter-threshold=100 --no-background-compilation
 
 import "deferred_load_inval_code_lib.dart" deferred as d;