Handle more corner cases of closures while doing ast-based summaries.

pkg/analyzer/test/src/summary/resynthesize_ast_test.dart

Index: pkg/analyzer/test/src/summary/resynthesize_ast_test.dart
diff --git a/pkg/analyzer/test/src/summary/resynthesize_ast_test.dart b/pkg/analyzer/test/src/summary/resynthesize_ast_test.dart
index 47faf818bbe3006acc50bee308a1f1cd7adfaaa6..cf9d72746a48df0ba460f03671ed70f6b12caa7b 100644
--- a/pkg/analyzer/test/src/summary/resynthesize_ast_test.dart
+++ b/pkg/analyzer/test/src/summary/resynthesize_ast_test.dart
@@ -564,12 +564,6 @@ class ResynthesizeAstTest extends ResynthesizeTest
   TestSummaryResynthesizer encodeDecodeLibrarySource(Source source) {
     return _encodeLibrary(source);
   }
-
-  @override
-  @failingTest
-  void test_inferred_function_type_in_generic_class_constructor() {
-    super.test_inferred_function_type_in_generic_class_constructor();
-  }
 }
 
 /**