Handle type parameters correctly when generating hints (issue 23243)

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 6883 matching lines @@
 }
 f(var a, var a2) {
   a = new A();
   a2 = new A();
   a += a2;
 }''');
     resolve(source);
     assertNoErrors(source);
   }
 
+  void test_undefinedMethod_dynamic() {
+    Source source = addSource(r'''
+class D<T extends dynamic> {
+  fieldAccess(T t) => t.abc;
+  methodAccess(T t) => t.xyz(1, 2, 'three');
+}''');
+    resolve(source);
+    assertNoErrors(source);
+  }
+
   void test_undefinedMethod_inSubtype() {
     Source source = addSource(r'''
 class A {}
 class B extends A {
   b() {}
 }
 f() {
   var a = new A();
   a.b();
 }''');
@@ skipping 6873 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;
   }
 }