Add package root support to analysis server.

pkg/analysis_server/test/integration/analysis/test_all.dart

Index: pkg/analysis_server/test/integration/analysis/test_all.dart
diff --git a/pkg/analysis_server/test/integration/analysis/test_all.dart b/pkg/analysis_server/test/integration/analysis/test_all.dart
index e834ba4aa62d0ca9cac2439716488ca40beea5e4..8d7b9536df7aa3245ed97fed689d242b253d8372 100644
--- a/pkg/analysis_server/test/integration/analysis/test_all.dart
+++ b/pkg/analysis_server/test/integration/analysis/test_all.dart
@@ -15,6 +15,7 @@ import 'navigation_test.dart' as navigation_test;
 import 'occurrences_test.dart' as occurrences_test;
 import 'outline_test.dart' as outline_test;
 import 'overrides_test.dart' as overrides_test;
+import 'package_root.dart' as package_root_test;
 import 'update_content_test.dart' as update_content_test;
 import 'update_content_list_test.dart' as update_content_list_test;
 
@@ -33,6 +34,7 @@ main() {
     occurrences_test.main();
     outline_test.main();
     overrides_test.main();
+    package_root_test.main();
     update_content_test.main();
     update_content_list_test.main();
   });