No errors in third-party packages (issue 22170)

pkg/analyzer/test/generated/resolver_test.dart

 // Copyright (c) 2014, 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 engine.resolver_test;
 
 import 'dart:collection';
 
 import 'package:analyzer/src/generated/ast.dart';
 import 'package:analyzer/src/generated/element.dart';
@@ skipping 344 matching lines @@
 /**
  * Instances of the class `AnalysisContextForTests` implement an analysis context that has a
  * fake SDK that is much smaller and faster for testing purposes.
  */
 class AnalysisContextForTests extends AnalysisContextImpl {
   @override
   void set analysisOptions(AnalysisOptions options) {
     AnalysisOptions currentOptions = analysisOptions;
     bool needsRecompute = currentOptions.analyzeFunctionBodiesPredicate !=
             options.analyzeFunctionBodiesPredicate ||
+        currentOptions.generateImplicitErrors !=
+            options.generateImplicitErrors ||
         currentOptions.generateSdkErrors != options.generateSdkErrors ||
         currentOptions.dart2jsHint != options.dart2jsHint ||
         (currentOptions.hint && !options.hint) ||
         currentOptions.preserveComments != options.preserveComments;
     if (needsRecompute) {
       fail(
           "Cannot set options that cause the sources to be reanalyzed in a test context");
     }
     super.analysisOptions = options;
   }
@@ skipping 13087 matching lines @@
         // check propagated type
         FunctionType propagatedType = node.propagatedType as FunctionType;
         expect(propagatedType.returnType, test.typeProvider.stringType);
       } on AnalysisException catch (e, stackTrace) {
         thrownException[0] = new CaughtException(e, stackTrace);
       }
     }
     return null;
   }
 }