Add interface comment removal as well (#50)

* add fixture with trait

* fixup! add fixture with trait

* add trait support

Author: TomasVotruba

src/DocBlock/UselessDocBlockCleaner.php

@@ -47,13 +47,13 @@ final class UselessDocBlockCleaner
      * @see https://regex101.com/r/RzTdFH/4
      * @var string
      */
-    private const STANDALONE_COMMENT_CLASS_REGEX = '#\/\/\s+[cC]lass\s+\w+$#';
+    private const STANDALONE_COMMENT_CLASS_REGEX = '#\/\/\s+([cC]lass|[tT]rait)\s+\w+$#';
 
     /**
      * @see https://regex101.com/r/RzTdFH/4
      * @var string
      */
-    private const INLINE_COMMENT_CLASS_REGEX = '#( \*|\/\/)\s+[cC]lass\s+(\w+)\n#';
+    private const INLINE_COMMENT_CLASS_REGEX = '#( \*|\/\/)\s+([cC]lass|[tT]rait)\s+(\w+)\n#';
 
     /**
      * @see https://regex101.com/r/bzbxXz/2

tests/Fixer/Commenting/RemoveUselessDefaultCommentFixer/Fixture/trait_docblock.php.inc

@@ -0,0 +1,24 @@
+<?php
+
+namespace Symplify\CodingStandard\Tests\Fixer\Commenting\RemoveUselessDefaultCommentFixer\Fixture;
+
+/**
+ * Trait SomeTrait
+ */
+trait SomeTrait
+{
+}
+
+?>
+-----
+<?php
+
+namespace Symplify\CodingStandard\Tests\Fixer\Commenting\RemoveUselessDefaultCommentFixer\Fixture;
+
+/**
+ */
+trait SomeTrait
+{
+}
+
+?>