Specialize Glob for the often case of suffix matching.

pkg/analyzer/test/src/util/glob_test.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.
 
 library test.analyzer.src.util.glob;
 
 import 'package:analyzer/src/util/glob.dart';
 import 'package:unittest/unittest.dart';
 
 import '../../reflective_tests.dart';
@@ skipping 44 matching lines @@
 
   void test_starStar() {
     Glob glob = new Glob(r'/', r'**.dart');
     expect(glob.matches(r'foo/bar.dart'), isTrue);
     expect(glob.matches(r'foo/bar/baz.dart'), isTrue);
     expect(glob.matches(r'/foo/bar.dart'), isTrue);
     expect(glob.matches(r'/foo/bar/baz.dart'), isTrue);
     // does not end with 'dart'
     expect(glob.matches(r'/web/foo.html'), isFalse);
   }
+
+  void test_starStar_star() {
+    Glob glob = new Glob(r'/', r'**/*.dart');
+    expect(glob.matches(r'foo/bar.dart'), isTrue);
+    expect(glob.matches(r'foo/bar/baz.dart'), isTrue);
+    expect(glob.matches(r'/foo/bar.dart'), isTrue);
+    expect(glob.matches(r'/foo/bar/baz.dart'), isTrue);
+    // does not end with 'dart'
+    expect(glob.matches(r'/web/foo.html'), isFalse);
+  }
 }
 
 @reflectiveTest
 class GlobWindowsTest {
   void test_case() {
     Glob glob = new Glob(r'\', r'**.dart');
     expect(glob.matches(r'aaa.dart'), isTrue);
     expect(glob.matches(r'bbb.DART'), isTrue);
     expect(glob.matches(r'ccc.dArT'), isTrue);
     expect(glob.matches(r'ddd.DaRt'), isTrue);
@@ skipping 31 matching lines @@
   void test_starStar() {
     Glob glob = new Glob(r'\', r'**.dart');
     expect(glob.matches(r'foo\bar.dart'), isTrue);
     expect(glob.matches(r'foo\bar\baz.dart'), isTrue);
     expect(glob.matches(r'C:\foo\bar.dart'), isTrue);
     expect(glob.matches(r'C:\foo\bar\baz.dart'), isTrue);
     // does not end with 'dart'
     expect(glob.matches(r'C:\web\foo.html'), isFalse);
   }
 }