Format all tests.

tests/language/minify_closure_variable_collision_test.dart

 // Copyright (c) 2013, 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.
 
 // Regression test for dart2js, that used to minify a captured
 // variable's name to the same name as inherited Object methods.
 
 var array = [new A()];
 
 class A {
-  operator==(other) {
+  operator ==(other) {
     return true;
   }
 }
 
 foo() {
   // Use lots of variables, to maximize the chance of collisions.
   var a = 42;
   var b = 42;
   var c = 42;
   var d = 42;
@@ skipping 14 matching lines @@
 
 main() {
   foo();
   if (array[0] == new A()) {
     throw 'Test failed';
   }
   if (array[0]() != 42 * 14) {
     throw 'Test failed';
   }
 }