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

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

 // Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library analyzer.test.src.summary.resynthesize_ast_test;
 
 import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/dart/element/element.dart';
 import 'package:analyzer/src/dart/element/element.dart';
 import 'package:analyzer/src/generated/engine.dart'
@@ skipping 546 matching lines @@
     return resynthesized;
   }
 
   @override
   DartSdk createDartSdk() => AbstractContextTest.SHARED_MOCK_SDK;
 
   @override
   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();
-  }
 }
 
 /**
  * Abstract mixin for serializing ASTs and resynthesizing elements from it.
  */
 abstract class _AstResynthesizeTestMixin {
   final Set<Source> serializedSources = new Set<Source>();
   final PackageBundleAssembler bundleAssembler = new PackageBundleAssembler();
   final Map<String, UnlinkedUnitBuilder> uriToUnit =
       <String, UnlinkedUnitBuilder>{};
@@ skipping 102 matching lines @@
     }
 
     UnlinkedUnit definingUnit = _getUnlinkedUnit(librarySource);
     LinkedLibraryBuilder linkedLibrary =
         prelink(definingUnit, getPart, getImport);
     linkedLibrary.dependencies.skip(1).forEach((LinkedDependency d) {
       _serializeLibrary(resolveRelativeUri(d.uri));
     });
   }
 }