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

tests/language/arithmetic_canonicalization_test.dart

Index: tests/language/arithmetic_canonicalization_test.dart
diff --git a/tests/language/arithmetic_canonicalization_test.dart b/tests/language/arithmetic_canonicalization_test.dart
index 04a9a12a6b8c5b06b6a69c536e6d1fb2b93d60cc..23567ca7f5d91ca834087c8c29ce5b09af0fb013 100644
--- a/tests/language/arithmetic_canonicalization_test.dart
+++ b/tests/language/arithmetic_canonicalization_test.dart
@@ -2,7 +2,7 @@
 // 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.
 // Test canonicalization of simple arithmetic equivalences.
-// VMOptions=--optimization-counter-threshold=20 --no-use-osr
+// VMOptions=--optimization-counter-threshold=20 --no-use-osr --no-background-compilation
 
 import "package:expect/expect.dart";