pkg/matcher: reapply 36881,36896 working around Issue 19173

pkg/matcher/lib/mirror_matchers.dart

Index: pkg/matcher/lib/mirror_matchers.dart
diff --git a/pkg/matcher/lib/mirror_matchers.dart b/pkg/matcher/lib/mirror_matchers.dart
index c836bc9f565760a5fed41398ff4396c71b699267..f397128fc2b74c3cfc97e39c75a7082800ec51cb 100644
--- a/pkg/matcher/lib/mirror_matchers.dart
+++ b/pkg/matcher/lib/mirror_matchers.dart
@@ -2,21 +2,17 @@
 // 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.
 
-/**
- * The mirror matchers library provides some additional matchers that
- * make use of `dart:mirrors`.
- */
+/// The mirror matchers library provides some additional matchers that
+/// make use of `dart:mirrors`.
 library matcher.mirror_matchers;
 
 import 'dart:mirrors';
 
 import 'matcher.dart';
 
-/**
- * Returns a matcher that checks if a class instance has a property
- * with name [name], and optionally, if that property in turn satisfies
- * a [matcher].
- */
+/// Returns a matcher that checks if a class instance has a property
+/// with name [name], and optionally, if that property in turn satisfies
+/// a [matcher].
 Matcher hasProperty(String name, [matcher]) =>
   new _HasProperty(name, matcher == null ? null : wrapMatcher(matcher));