Fix for summarization of generic function type aliases and support for resynthesizing.

pkg/analyzer/lib/src/summary/idl.dart

 // Copyright (c) 2015, 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.
 
 /**
  * This file is an "idl" style description of the summary format.  It
  * contains abstract classes which declare the interface for reading data from
  * summaries.  It is parsed and transformed into code that implements the
  * summary format.
  *
@@ skipping 1114 matching lines @@
   topLevelPropertyAccessor,
 
   /**
    * The entity is a prefix.
    */
   prefix,
 
   /**
    * The entity being referred to does not exist.
    */
-  unresolved
+  unresolved,
+
+  /**
+   * The entity is a typedef expressed using generic function type syntax.
+   */
+  genericFunctionTypedef
 }
 
 /**
  * Summary information about a top-level type inference error.
  */
 abstract class TopLevelInferenceError extends base.SummaryClass {
   /**
    * The [kind] specific arguments.
    */
   @Id(2)
@@ skipping 2194 matching lines @@
   @Id(11)
   int get visibleLength;
 
   /**
    * If a local variable, the beginning of the visible range; zero otherwise.
    */
   @informative
   @Id(12)
   int get visibleOffset;
 }