Make integration tests a bit cleaner.

utils/tests/pub/install/git/unlock_if_incompatible_test.dart

Index: utils/tests/pub/install/git/unlock_if_incompatible_test.dart
diff --git a/utils/tests/pub/install/git/unlock_if_incompatible_test.dart b/utils/tests/pub/install/git/unlock_if_incompatible_test.dart
index 17ddc10f03e182ac48fd170da61353137dc4c37f..47aa1386b0449322f4ec95aa6c953ade7b54234d 100644
--- a/utils/tests/pub/install/git/unlock_if_incompatible_test.dart
+++ b/utils/tests/pub/install/git/unlock_if_incompatible_test.dart
@@ -7,10 +7,10 @@ library pub_tests;
 import 'dart:io';
 
 import '../../test_pub.dart';
-import '../../../../../pkg/unittest/lib/unittest.dart';
 
 main() {
-  test('updates a locked Git package with a new incompatible constraint', () {
+  integration('updates a locked Git package with a new incompatible '
+      'constraint', () {
     ensureGit();
 
     git('foo.git', [
@@ -44,7 +44,5 @@ main() {
         file('foo.dart', 'main() => "foo 1.0.0";')
       ])
     ]).scheduleValidate();
-
-    run();
   });
 }