Add ParameterMirror.isInitializingFormal to dart:mirrors

sdk/lib/mirrors/mirrors.dart

 // Copyright (c) 2013, 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.
 
 // For the purposes of the mirrors library, we adopt a naming
 // convention with respect to getters and setters.  Specifically, for
 // some variable or field...
 //
 //   var myField;
 //
@@ skipping 1091 matching lines @@
 /**
  * A [ParameterMirror] reflects a Dart formal parameter declaration.
  */
 abstract class ParameterMirror implements VariableMirror {
   /**
    * A mirror on the type of this parameter.
    */
   TypeMirror get type;
 
   /**
+   * Returns [:true:] if the reflectee is an parameter of a constructor
+   * that instantiates a field. Otherwise returns [:false:].
+   */
+  bool get isInitializingFormal;
+
+  /**
    * Returns [:true:] if the reflectee is an optional parameter.
    * Otherwise returns [:false:].
    */
   bool get isOptional;
 
   /**
    * Returns [:true:] if the reflectee is a named parameter.
    * Otherwise returns [:false:].
    */
   bool get isNamed;
@@ skipping 308 matching lines @@
   final override;
 
   /**
    * See the documentation for [MirrorsUsed.symbols], [MirrorsUsed.targets], 
    * [MirrorsUsed.metaTargets] and [MirrorsUsed.override] for documentation 
    * of the parameters.
    */
   const MirrorsUsed(
       {this.symbols, this.targets, this.metaTargets, this.override});
 }