Encode number of type parameters in prelinked summary.

pkg/analyzer/tool/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 is not
  * executed directly; instead it is parsed and transformed into code that
  * implements the summary format.
  *
  * The code generation process introduces the following non-typical semantics:
@@ skipping 112 matching lines @@
    */
   PrelinkedReferenceKind kind;
 
   /**
    * Integer index indicating which unit in the imported library contains the
    * definition of the entity.  As with indices into [PrelinkedLibrary.units],
    * zero represents the defining compilation unit, and nonzero values
    * represent parts in the order of the corresponding `part` declarations.
    */
   int unit;
+
+  /**
+   * If the entity being referred to is generic, the number of type parameters
+   * it accepts.  Otherwise zero.
+   */
+  int numTypeParameters;
 }
 
 /**
  * Enum used to indicate the kind of entity referred to by a
  * [PrelinkedReference].
  */
 enum PrelinkedReferenceKind {
   /**
    * The entity is a class or enum.
    */
@@ skipping 629 matching lines @@
   /**
    * Indicates whether the variable is declared using the `const` keyword.
    */
   bool isConst;
 
   /**
    * Indicates whether this variable lacks an explicit type declaration.
    */
   bool hasImplicitType;
 }