Resolve Library/Part/PartOf/Directive(s) in AST without tasks.

pkg/analyzer/test/src/dart/analysis/base.dart

Index: pkg/analyzer/test/src/dart/analysis/base.dart
diff --git a/pkg/analyzer/test/src/dart/analysis/base.dart b/pkg/analyzer/test/src/dart/analysis/base.dart
index 51a01ed49df189488e3d9e3c974d4ab631322ef3..558e23224da740ca6262d21f0bbd36a118ab33e0 100644
--- a/pkg/analyzer/test/src/dart/analysis/base.dart
+++ b/pkg/analyzer/test/src/dart/analysis/base.dart
@@ -122,7 +122,9 @@ class BaseAnalysisDriverTest {
           }),
           new ResourceUriResolver(provider)
         ], null, provider),
-        new AnalysisOptionsImpl()..strongMode = true);
+        new AnalysisOptionsImpl()
+          ..strongMode = true
+          ..enableUriInPartOf = true);
     scheduler.start();
     scheduler.status.listen(allStatuses.add);
     driver.results.listen(allResults.add);