Make sure to visit function annotations in ElementBuilder.

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:math" as math;
 import 'dart:collection';
 
 import 'package:analyzer/src/generated/utilities_collection.dart';
@@ skipping 2652 matching lines @@
   }
 
   @override
   Object visitFunctionDeclaration(FunctionDeclaration node) {
     FunctionExpression expression = node.functionExpression;
     if (expression != null) {
       ElementHolder holder = new ElementHolder();
       bool wasInFunction = _inFunction;
       _inFunction = true;
       try {
-        _visitChildren(holder, expression);
+        _visitChildren(holder, node);
       } finally {
         _inFunction = wasInFunction;
       }
       FunctionBody body = expression.body;
       sc.Token property = node.propertyKeyword;
       if (property == null || _inFunction) {
         SimpleIdentifier functionName = node.name;
         FunctionElementImpl element =
             new FunctionElementImpl.forNode(functionName);
         element.functions = holder.functions;
@@ skipping 74 matching lines @@
           propertyNameNode.staticElement = setter;
         }
       }
       holder.validate();
     }
     return null;
   }
 
   @override
   Object visitFunctionExpression(FunctionExpression node) {
+    if (node.parent is FunctionDeclaration) {
+      // visitFunctionDeclaration has already created the element for the
+      // declaration.  We just need to visit children.
+      return super.visitFunctionExpression(node);
+    }
     ElementHolder holder = new ElementHolder();
     bool wasInFunction = _inFunction;
     _inFunction = true;
     try {
       _visitChildren(holder, node);
     } finally {
       _inFunction = wasInFunction;
     }
     FunctionBody body = node.body;
     FunctionElementImpl element =
@@ skipping 12633 matching lines @@
     nonFields.add(node);
     return null;
   }
 
   @override
   Object visitNode(AstNode node) => node.accept(TypeResolverVisitor_this);
 
   @override
   Object visitWithClause(WithClause node) => null;
 }