Allow explicitly passing generic function type args

pkg/analyzer/lib/src/generated/resolver.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;
 
 import 'dart:collection';
 
 import '../task/strong/info.dart' show InferredType, StaticInfo;
 import '../task/strong/rules.dart' show TypeRules;
@@ skipping 11803 matching lines @@
     return null;
   }
 
   @override
   Object visitMethodInvocation(MethodInvocation node) {
     //
     // We visit the target and argument list, but do not visit the method name
     // because it needs to be visited in the context of the invocation.
     //
     safelyVisit(node.target);
+    safelyVisit(node.typeArguments);
     node.accept(elementResolver);
     _inferFunctionExpressionsParametersTypes(node.argumentList);
     Element methodElement = node.methodName.staticElement;
     if (methodElement is ExecutableElement) {
       InferenceContext.setType(node.argumentList, methodElement.type);
     }
     safelyVisit(node.argumentList);
     node.accept(typeAnalyzer);
     return null;
   }
@@ skipping 4236 matching lines @@
     nonFields.add(node);
     return null;
   }
 
   @override
   Object visitNode(AstNode node) => node.accept(TypeResolverVisitor_this);
 
   @override
   Object visitWithClause(WithClause node) => null;
 }