Add prefix to path import to work around breaking change

pkg/analyzer/test/generated/all_the_rest_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 analyzer.test.generated.all_the_rest_test;
 
 import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/dart/ast/token.dart';
 import 'package:analyzer/dart/element/element.dart';
 import 'package:analyzer/dart/element/type.dart';
@@ skipping 15 matching lines @@
 import 'package:analyzer/src/generated/sdk.dart';
 import 'package:analyzer/src/generated/sdk_io.dart';
 import 'package:analyzer/src/generated/source.dart';
 import 'package:analyzer/src/generated/source_io.dart';
 import 'package:analyzer/src/generated/testing/ast_factory.dart';
 import 'package:analyzer/src/generated/testing/element_factory.dart';
 import 'package:analyzer/src/generated/testing/test_type_provider.dart';
 import 'package:analyzer/src/generated/testing/token_factory.dart';
 import 'package:analyzer/src/generated/utilities_dart.dart';
 import 'package:analyzer/src/source/source_resource.dart';
-import 'package:path/path.dart';
+import 'package:path/path.dart' as path;
 import 'package:source_span/source_span.dart';
 import 'package:test/test.dart';
 import 'package:test_reflective_loader/test_reflective_loader.dart';
 
 import 'parser_test.dart';
 import 'resolver_test_case.dart';
 import 'test_support.dart';
 
 main() {
   defineReflectiveSuite(() {
@@ skipping 74 matching lines @@
 
   void test_resolve_unknown_uri() {
     UriResolver resolver = new CustomUriResolver({
       'custom:library': '/path/to/library.dart',
     });
     Source result = resolver.resolveAbsolute(Uri.parse("custom:non_library"));
     expect(result, isNull);
   }
 
   void test_resolve_uri() {
-    String path =
+    String filePath =
         FileUtilities2.createFile("/path/to/library.dart").getAbsolutePath();
     UriResolver resolver = new CustomUriResolver({
-      'custom:library': path,
+      'custom:library': filePath,
     });
     Source result = resolver.resolveAbsolute(Uri.parse("custom:library"));
     expect(result, isNotNull);
-    expect(result.fullName, path);
+    expect(result.fullName, filePath);
   }
 }
 
 @reflectiveTest
 class DartUriResolverTest {
   void test_creation() {
     DartSdk sdk = _createSdk();
     expect(new DartUriResolver(sdk), isNotNull);
   }
 
@@ skipping 3027 matching lines @@
     expect(error.offset, element.nameOffset);
   }
 
   void test_reportErrorForElement_unnamed() {
     ImportElementImpl element =
         ElementFactory.importFor(ElementFactory.library(null, ''), null);
     GatheringErrorListener listener = new GatheringErrorListener();
     ErrorReporter reporter = new ErrorReporter(
         listener,
         new NonExistingSource(
-            '/test.dart', toUri('/test.dart'), UriKind.FILE_URI));
+            '/test.dart', path.toUri('/test.dart'), UriKind.FILE_URI));
     reporter.reportErrorForElement(
         StaticWarningCode.CONFLICTING_INSTANCE_GETTER_AND_SUPERCLASS_MEMBER,
         element,
         ['A']);
     AnalysisError error = listener.errors[0];
     expect(error.offset, element.nameOffset);
   }
 
   void test_reportErrorForSpan() {
     GatheringErrorListener listener = new GatheringErrorListener();
@@ skipping 1328 matching lines @@
     expect(UriKind.fromEncoding(0x70), same(UriKind.PACKAGE_URI));
     expect(UriKind.fromEncoding(0x58), same(null));
   }
 
   void test_getEncoding() {
     expect(UriKind.DART_URI.encoding, 0x64);
     expect(UriKind.FILE_URI.encoding, 0x66);
     expect(UriKind.PACKAGE_URI.encoding, 0x70);
   }
 }