Resolve obvious deprecation warnings on bleeding edge

lib/src/codegen/js_module_item_order.dart

 // Copyright (c) 2015, 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.
 
 import 'dart:collection' show HashMap;
 
-import 'package:analyzer/src/generated/ast.dart';
-import 'package:analyzer/src/generated/element.dart';
+import 'package:analyzer/dart/ast/ast.dart';
+import 'package:analyzer/dart/element/element.dart';
 
 import '../compiler.dart' show corelibOrder;
 
 typedef void ModuleItemEmitter(AstNode item);
 
 /// Helper that tracks order of elements visited by the compiler, detecting
 /// if the top level item can be loaded eagerly or not.
 class ModuleItemLoadOrder {
   /// The order that elements should be emitted in, with a bit indicating if
   /// the element should be generated lazily. The value will be `false` if
@@ skipping 232 matching lines @@
       if (result) break;
       result = _inLibraryCycle(e.importedLibrary);
     }
     for (var e in library.exports) {
       if (result) break;
       result = _inLibraryCycle(e.exportedLibrary);
     }
     return _libraryCycleMemo[library] = result;
   }
 }