Clean-up imports

pkg/analyzer/test/utils.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.
 
 library analyzer.test.utils;
 
+import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/dart/element/element.dart';
 import 'package:analyzer/dart/element/type.dart';
-import 'package:analyzer/src/generated/ast.dart';
 import 'package:analyzer/src/generated/java_io.dart';
 import 'package:analyzer/src/generated/resolver.dart' show TypeProvider;
 import 'package:path/path.dart' as path;
 import 'package:unittest/unittest.dart';
 
 void initializeTestEnvironment() {
   groupSep = ' | ';
   JavaFile.pathContext = path.posix;
 }
 
@@ skipping 275 matching lines @@
   Asserter<DartType> isType(DartType argument) => (DartType t) {
         expect(t, same(argument));
       };
 
   /**
    * Given a type, produce an assertion that a type has the same element.
    */
   Asserter<DartType> sameElement(DartType elementType) =>
       hasElement(elementType.element);
 }