Match method-name docblock descriptions with articles and punctuation

[TomasVotruba]

RemoveMethodNameDuplicateDescriptionFixer matched a description line only when its space-stripped content was exactly the method name (e.g. * Set name → setName). Human-written phrasing with articles or trailing punctuation slipped through.

This normalizes the line before comparison: drops articles (a/an/the) and strips non-alphanumeric chars (whitespace + trailing ., !, :).

 final class ApiIntegration
 {
     /**
-     * Get the API helper.
-     *
      * @return object
      */
     public function getApiHelper()
     {
     }
 }

Existing matches (Set name, Get now) still removed. New fixture with_articles.php.inc covers the article case.