Specialize Glob for the often case of suffix matching.

pkg/analyzer/test/src/util/glob_test.dart

Index: pkg/analyzer/test/src/util/glob_test.dart
diff --git a/pkg/analyzer/test/src/util/glob_test.dart b/pkg/analyzer/test/src/util/glob_test.dart
index d3bc531ccfd6b09213ed5c89953da835f699194e..a3e69ec8af994d846c79d4d89d1d0a68dfa0b69b 100644
--- a/pkg/analyzer/test/src/util/glob_test.dart
+++ b/pkg/analyzer/test/src/util/glob_test.dart
@@ -62,6 +62,16 @@ class GlobPosixTest {
     // 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