Serialize assignment expressions.

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 1810 matching lines @@
    * Perform `target *= operand`.
    */
   multiply,
 
   /**
    * Perform `target /= operand`.
    */
   divide,
 
   /**
-   * Perform `target ~= operand`.
+   * Perform `target ~/= operand`.
    */
   floorDivide,
 
   /**
    * Perform `target %= operand`.
    */
   modulo,
 
   /**
    * Perform `target += operand`.
@@ skipping 725 matching lines @@
    */
   @Id(11)
   int get visibleLength;
 
   /**
    * If a local variable, the beginning of the visible range; zero otherwise.
    */
   @Id(12)
   int get visibleOffset;
 }