Fix DeclarationResolver handling of annotations containing closures.

pkg/analyzer/test/src/context/context_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 analyzer.test.src.context.context_test;
 
 import 'dart:async';
 import 'dart:collection';
 
 import 'package:analyzer/dart/ast/ast.dart';
@@ skipping 2420 matching lines @@
 
 String topLevelVariable;
 int get topLevelGetter => 0;
 void set topLevelSetter(int value) {}
 String topLevelFunction(int i) => '';
 
 typedef String FunctionTypeAlias(int i);
 
 enum EnumeratedType {Invalid, Valid}
 
+class A {
+  const A(x);
+}
+
+@A(const [(_) => null])
 class ClassOne {
   int instanceField;
   static int staticField;
 
   ClassOne();
   ClassOne.named();
 
   int get instanceGetter => 0;
   static String get staticGetter => '';
 
@@ skipping 2827 matching lines @@
    * Initialize the visitor.
    */
   _ElementGatherer();
 
   @override
   void visitElement(Element element) {
     elements[element] = element;
     super.visitElement(element);
   }
 }