Move Tokenfactory, AstFactory and ElementFactory from tests to the testing/ Folder.

pkg/analyzer/lib/src/generated/source.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.
 
 // This code was auto-generated, is not intended to be edited, and is subject to
 // significant change. Please see the README file for more information.
 
 library engine.source;
 
 import 'dart:collection';
@@ skipping 240 matching lines @@
   @override
   bool isLocal(Source source) => source.uriKind != UriKind.DART_URI;
 }
 
 class LocalSourcePredicate_TRUE implements LocalSourcePredicate {
   @override
   bool isLocal(Source source) => true;
 }
 
 /**
+ * An implementation of an non-existing [Source].
+ */
+class NonExistingSource implements Source {
+  final String _name;
+
+  final UriKind uriKind;
+
+  NonExistingSource(this._name, this.uriKind);
+
+  @override
+  bool operator ==(Object obj) {
+    if (obj is NonExistingSource) {
+      NonExistingSource other = obj;
+      return other.uriKind == uriKind && (other._name == _name);
+    }
+    return false;
+  }
+
+  @override
+  bool exists() => false;
+
+  @override
+  TimestampedData<String> get contents {
+    throw new UnsupportedOperationException("${_name}does not exist.");
+  }
+
+  @override
+  String get encoding {
+    throw new UnsupportedOperationException("${_name}does not exist.");
+  }
+
+  @override
+  String get fullName => _name;
+
+  @override
+  int get modificationStamp => 0;
+
+  @override
+  String get shortName => _name;
+
+  @override
+  int get hashCode => _name.hashCode;
+
+  @override
+  bool get isInSystemLibrary => false;
+
+  @override
+  Source resolveRelative(Uri relativeUri) {
+    throw new UnsupportedOperationException("${_name}does not exist.");
+  }
+}
+
+/**
  * The interface `Source` defines the behavior of objects representing source code that can be
  * analyzed by the analysis engine.
  *
  * Implementations of this interface need to be aware of some assumptions made by the analysis
  * engine concerning sources:
  * * Sources are not required to be unique. That is, there can be multiple instances representing
  * the same source.
  * * Sources are long lived. That is, the engine is allowed to hold on to a source for an extended
  * period of time and that source must continue to report accurate and up-to-date information.
  * Because of these assumptions, most implementations will not maintain any state but will delegate
@@ skipping 589 matching lines @@
 
   /**
    * Return an absolute URI that represents the given source, or `null` if a valid URI cannot
    * be computed.
    *
    * @param source the source to get URI for
    * @return the absolute URI representing the given source
    */
   Uri restoreAbsolute(Source source) => null;
 }