Switch from interfaces to abstract classes in dart:io.

utils/apidoc/apidoc.dart

 // Copyright (c) 2012, 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 generates the reference documentation for the core libraries that come
  * with dart. It is built on top of dartdoc, which is a general-purpose library
  * for generating docs from any Dart code. This library extends that to include
  * additional information and styling specific to our standard library.
  *
@@ skipping 12 matching lines @@
 #import('../../pkg/dartdoc/lib/mirrors_util.dart');
 #import('../../pkg/dartdoc/lib/dartdoc.dart', prefix: 'doc');
 #import('../../lib/_internal/libraries.dart');
 
 HtmlDiff _diff;
 
 void main() {
   final args = new Options().arguments;
 
   int mode = doc.MODE_STATIC;
-  Path outputDir = const Path('docs');
+  Path outputDir = new Path('docs');
   bool generateAppCache = false;
 
   // Parse the command-line arguments.
   for (int i = 0; i < args.length; i++) {
     final arg = args[i];
 
     switch (arg) {
       case '--mode=static':
         mode = doc.MODE_STATIC;
         break;
@@ skipping 514 matching lines @@
     final typeName = member.surroundingDeclaration.simpleName;
     var memberName = '$typeName.${member.simpleName}';
     if (member is MethodMirror && (member.isConstructor || member.isFactory)) {
       final separator = member.constructorName == '' ? '' : '.';
       memberName = 'new $typeName$separator${member.constructorName}';
     }
 
     return a(memberUrl(member), memberName);
   }
 }