UPDATE Method.php, MethodTest.php

- Modify the RegEx, so that an annotation like `@method static $this myMethod()` is parsed correctly
- Write a Unittest for that usecase

src/DocBlock/Tags/Method.php

@@ -91,10 +91,14 @@ final class Method extends BaseTag implements Factory\StaticMethod
                 )?
                 # Return type
                 (?:
-                    (
-                        (?:[\w\|_\\\\]+)
-                        # array notation           
-                        (?:\[\])*
+                    (   
+                        (?:[\w\|_\\\\]*\$this[\w\|_\\\\]*)
+                        |
+                        (?:
+                            (?:[\w\|_\\\\]+)
+                            # array notation           
+                            (?:\[\])*
+                        )
                     )?
                     \s+
                 )?