Default arg support continued (flutter-intellij#553).

pkg/analysis_server/test/services/completion/dart/local_constructor_contributor_test.dart

Index: pkg/analysis_server/test/services/completion/dart/local_constructor_contributor_test.dart
diff --git a/pkg/analysis_server/test/services/completion/dart/local_constructor_contributor_test.dart b/pkg/analysis_server/test/services/completion/dart/local_constructor_contributor_test.dart
index 7ee4457f376a4b4ac74a4633ce793add11779cc9..ddaa6a5559a6ae9265775ccaec8c60524aa9ef72 100644
--- a/pkg/analysis_server/test/services/completion/dart/local_constructor_contributor_test.dart
+++ b/pkg/analysis_server/test/services/completion/dart/local_constructor_contributor_test.dart
@@ -4153,4 +4153,22 @@ class LocalConstructorContributorTest_Driver
     extends LocalConstructorContributorTest {
   @override
   bool get enableNewAnalysisDriver => true;
+
+  /// Sanity check.  Permutations tested in local_ref_contributor.
+  test_ArgDefaults_cons_with_required_named() async {
+    addMetaPackageSource();
+    addTestSource('''
+import 'package:meta/meta.dart';
+
+class A {
+  A(int bar, {bool boo, @required int baz});
+  baz() {
+    new A^
+  }
+}''');
+    await computeSuggestions();
+
+    assertSuggestConstructor('A',
+        defaultArgListString: 'bar, baz: null');
+  }
 }