suggest "in" in for statement

pkg/analysis_server/test/completion_test.dart

 // Copyright (c) 2014, 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.
 
 library test.completion.support;
 
 import 'dart:async';
 import 'dart:collection';
 
 import 'package:unittest/unittest.dart';
@@ skipping 2619 matching lines @@
           "C+catch",
           "D+var",
           "E+void",
           "F+assert",
           "G+continue",
           "H+break",
           "J+if",
           "K+else",
           "L+return"
         ],
-        failingTests: '35BCHK');
+        failingTests: '3BCHK');
 
     // operators in function
     buildTests('test015', '''f(a,b,c) => a + b * c !1;''', <String>["1+=="],
         failingTests: '1');
 
     // operators in return
     buildTests(
         'test016',
         '''class X {dynamic f(a,b,c) {return a + b * c !1;}}''',
         <String>["1+=="],
@@ skipping 343 matching lines @@
       } else {
         ++expectedPassCount;
         tester(testName, () {
           CompletionTestCase test = new CompletionTestCase();
           return test.runTest(spec, extraFiles);
         });
       }
     }
   }
 }