Remove AnalysisContext.refactoringUnsafeSources.

pkg/analyzer/test/src/context/context_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.src.context.context_test;
 
 import 'dart:async';
 import 'dart:collection';
 
 import 'package:analyzer/src/cancelable_future.dart';
@@ skipping 1005 matching lines @@
     _sourceFactory = _context.sourceFactory;
     Source source = _addSource("/test.dart", "class A {}");
     LibraryElement library = _context.computeLibraryElement(source);
     expect(library, isNotNull);
     Namespace namespace = _context.getPublicNamespace(library);
     expect(namespace, isNotNull);
     EngineTestCase.assertInstanceOf(
         (obj) => obj is ClassElement, ClassElement, namespace.get("A"));
   }
 
-  void fail_getRefactoringUnsafeSources() {
-    // not sources initially
-    List<Source> sources = _context.refactoringUnsafeSources;
-    expect(sources, hasLength(0));
-    // add new source, unresolved
-    Source source = _addSource("/test.dart", "library lib;");
-    sources = _context.refactoringUnsafeSources;
-    expect(sources, hasLength(1));
-    expect(sources[0], source);
-    // resolve source
-    _context.computeLibraryElement(source);
-    sources = _context.refactoringUnsafeSources;
-    expect(sources, hasLength(0));
-  }
-
   void fail_getResolvedCompilationUnit_library() {
     _context = contextWithCore();
     _sourceFactory = _context.sourceFactory;
     Source source = _addSource("/lib.dart", "library libb;");
     LibraryElement library = _context.computeLibraryElement(source);
     expect(_context.getResolvedCompilationUnit(source, library), isNotNull);
     _context.setContents(source, "library lib;");
     expect(_context.getResolvedCompilationUnit(source, library), isNull);
   }
 
@@ skipping 1452 matching lines @@
       : super(name, UriKind.FILE_URI);
 
   @override
   TimestampedData<String> get contents {
     throw 'Read error';
   }
 
   @override
   bool exists() => true;
 }