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

tests/language/deopt_lazy_finalization_test.dart

 // Copyright (c) 2012, 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.
 // Test deoptimziation caused by lazy finalization.
-// VMOptions=--optimization-counter-threshold=10 --no-use-osr
+// VMOptions=--optimization-counter-threshold=10 --no-use-osr --no-background-compilation
 
 import "package:expect/expect.dart";
 
 main() {
   Expect.equals(20000, part1());
   // Trigger lazy finalization of class B, which should invalidate
   // optimized code for A.loop.
   Expect.equals(-20000, part2());
 }
 
 part1() {
   var a = new A();
   a.loop();
   // Second invocation calls optimized code.
   return a.loop();
 }
 
 part2() {
   var b = new B();
   b.loop();
   // Second invocation calls optimized code.
   return b.loop();
 }
 
 class A {
   foo() => 2;
-  
+
   loop() {
     var sum = 0;
     for (int i = 0; i < 10000; i++) {
       sum += foo();
     }
     return sum;
   }
 }
 
 class Aa extends A {
 
 }
 
 class B extends Aa {
   foo() => -2;
 }