Use package URI in a test to fix Windows bot.

R=brianwilkerson@google.com

Change-Id: I41e09fe2eb4461665946660246a76497b00c3d35
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/197260
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Commit-Queue: Konstantin Shcheglov <scheglov@google.com>
diff --git a/pkg/analyzer/test/src/summary/resynthesize_common.dart b/pkg/analyzer/test/src/summary/resynthesize_common.dart
index 3ef5b4d..44718305 100644
--- a/pkg/analyzer/test/src/summary/resynthesize_common.dart
+++ b/pkg/analyzer/test/src/summary/resynthesize_common.dart
@@ -301,7 +301,8 @@
   }
 
   test_class_alias_with_const_constructors() async {
-    addLibrarySource('/a.dart', '''
+    testFile = convertPath('/home/test/lib/test.dart');
+    addLibrarySource('/home/test/lib/a.dart', r'''
 class Base {
   const Base._priv();
   const Base();
@@ -316,7 +317,7 @@
     checkElementText(
         library,
         r'''
-import 'a.dart';
+import 'package:test/a.dart';
 class M {
 }
 class alias MixinApp extends Base with M {
@@ -324,16 +325,16 @@
     constantInitializers
       SuperConstructorInvocation
         argumentList: ArgumentList
-        staticElement: file:///a.dart::@class::Base::@constructor::•
+        staticElement: package:test/a.dart::@class::Base::@constructor::•
   synthetic const MixinApp.named();
     constantInitializers
       SuperConstructorInvocation
         argumentList: ArgumentList
         constructorName: SimpleIdentifier
-          staticElement: file:///a.dart::@class::Base::@constructor::named
+          staticElement: package:test/a.dart::@class::Base::@constructor::named
           staticType: null
           token: named
-        staticElement: file:///a.dart::@class::Base::@constructor::named
+        staticElement: package:test/a.dart::@class::Base::@constructor::named
 }
 ''',
         withFullyResolvedAst: true);