Fix for 'Create part' Quick Fix.

pkg/analyzer/lib/src/generated/testing/element_factory.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.testing.element_factory;
 
 import 'dart:collection';
 
 import 'package:analyzer/src/generated/ast.dart';
 import 'package:analyzer/src/generated/constant.dart';
 import 'package:analyzer/src/generated/element.dart';
 import 'package:analyzer/src/generated/engine.dart';
 import 'package:analyzer/src/generated/java_core.dart';
 import 'package:analyzer/src/generated/resolver.dart';
 import 'package:analyzer/src/generated/source.dart';
 import 'package:analyzer/src/generated/utilities_dart.dart';
+import 'package:path/path.dart';
 
 /**
  * The class `ElementFactory` defines utility methods used to create elements for testing
  * purposes. The elements that are created are complete in the sense that as much of the element
  * model as can be created, given the provided information, has been created.
  */
 class ElementFactory {
   /**
    * The element representing the class 'Object'.
    */
@@ skipping 47 matching lines @@
     element.typedef = true;
     return element;
   }
 
   static ClassElementImpl classTypeAlias2(String typeName,
           [List<String> parameterNames]) =>
       classTypeAlias(typeName, objectType, parameterNames);
 
   static CompilationUnitElementImpl compilationUnit(String fileName,
       [Source librarySource]) {
-    Source source = new NonExistingSource(fileName, UriKind.FILE_URI);
+    Source source =
+        new NonExistingSource(fileName, toUri(fileName), UriKind.FILE_URI);
     CompilationUnitElementImpl unit = new CompilationUnitElementImpl(fileName);
     unit.source = source;
     if (librarySource == null) {
       librarySource = source;
     }
     unit.librarySource = librarySource;
     return unit;
   }
 
   static ConstLocalVariableElementImpl constLocalVariableElement(String name) =>
@@ skipping 257 matching lines @@
     getter.getter = true;
     getter.variable = field;
     getter.returnType = type;
     field.getter = getter;
     FunctionTypeImpl getterType = new FunctionTypeImpl(getter);
     getter.type = getterType;
     return getter;
   }
 
   static HtmlElementImpl htmlUnit(AnalysisContext context, String fileName) {
-    Source source = new NonExistingSource(fileName, UriKind.FILE_URI);
+    Source source =
+        new NonExistingSource(fileName, toUri(fileName), UriKind.FILE_URI);
     HtmlElementImpl unit = new HtmlElementImpl(context, fileName);
     unit.source = source;
     return unit;
   }
 
   static ImportElementImpl importFor(
       LibraryElement importedLibrary, PrefixElement prefix,
       [List<NamespaceCombinator> combinators = NamespaceCombinator.EMPTY_LIST]) {
     ImportElementImpl spec = new ImportElementImpl(0);
     spec.importedLibrary = importedLibrary;
@@ skipping 152 matching lines @@
       setter.variable = variable;
       setter.parameters =
           <ParameterElement>[requiredParameter2("_$name", type)];
       setter.returnType = VoidTypeImpl.instance;
       setter.type = new FunctionTypeImpl(setter);
       variable.setter = setter;
     }
     return variable;
   }
 }