Fix case-insensitive absolute listing.

test/list_test.dart

 // Copyright (c) 2014, 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.
 
 import 'dart:async';
 import 'dart:io';
 
 import 'package:glob/glob.dart';
 import 'package:glob/src/utils.dart';
 import 'package:path/path.dart' as p;
@@ skipping 257 matching lines @@
         var pattern = separatorToForwardSlash(
             p.absolute(p.join(sandbox, 'foo/baz/**')));
 
         return list(pattern);
       }), completion(unorderedEquals([
         p.join("foo", "baz", "bang"),
         p.join("foo", "baz", "qux")
       ])));
     });
 
+    // Regression test for #4.
+    test("lists an absolute case-insensitive glob", () {
+      expect(schedule(() {
+        var pattern = separatorToForwardSlash(
+            p.absolute(p.join(sandbox, 'foo/Baz/**')));
+
+        return list(pattern, caseSensitive: false);
+      }), completion(unorderedEquals([
+        p.join("foo", "baz", "bang"),
+        p.join("foo", "baz", "qux")
+      ])));
+    });
+
     test("lists a subdirectory that sometimes exists", () {
       d.dir("top", [
         d.dir("dir1", [
           d.dir("subdir", [d.file("file")])
         ]),
         d.dir("dir2", [])
       ]).create();
 
       expect(list("top/*/subdir/**"),
           completion(equals([p.join("top", "dir1", "subdir", "file")])));
@@ skipping 68 matching lines @@
   }, 'creating sandbox');
 
   currentSchedule.onComplete.schedule(() {
     d.defaultRoot = null;
     if (sandbox == null) return null;
     var oldSandbox = sandbox;
     sandbox = null;
     return new Directory(oldSandbox).delete(recursive: true);
   });
 }