Fail inference when an instance field is referenced.

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

 // Copyright (c) 2017, 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.
 
 import 'dart:async';
 
 import 'package:analyzer/dart/element/element.dart';
 import 'package:analyzer/src/dart/analysis/driver.dart';
 import 'package:test_reflective_loader/test_reflective_loader.dart';
 
@@ skipping 75 matching lines @@
         library,
         r'''
 int vBitXor;
 int vBitAnd;
 int vBitOr;
 int vBitShiftLeft;
 int vBitShiftRight;
 ''');
   }
 
+  @failingTest
   test_initializer_cascade() async {
     var library = await _encodeDecodeLibrary(r'''
 class A {
   int a;
   void m() {}
 }
 var vSetField = new A()..a = 1;
 var vInvokeMethod = new A()..m();
 var vBoth = new A()..a = 1..m();
 ''');
@@ skipping 761 matching lines @@
   /**
    * A getter, setter or field which overrides/implements only a getter is
    * inferred to have the type taken from the overridden getter result type.
    *
    * Note that overriding a field is addressed via the implicit induced
    * getter/setter pair (or just getter in the case of a final field).
    *
    * A field with no annotated type that does not override anything has the
    * type inferred from its initializer.
    */
-  @failingTest
   test_instanceField_preferOverride() async {
     var library = await _encodeDecodeLibrary(r'''
 abstract class A {
   num x;
   var y = 2;
 }
 class B implements A {
   var x = 1;
   var y = 2;
   var z = 3;
@@ skipping 611 matching lines @@
 
   Future<LibraryElement> _encodeDecodeLibrary(String text) async {
     String path = _p('/test.dart');
     provider.newFile(path, text);
     UnitElementResult result = await driver.getUnitElement(path);
     return result.element.library;
   }
 
   String _p(String path) => provider.convertPath(path);
 }