D-Programming-Language/phobos — pull request #912 by shoo (2012-10-30 15:37:42+00:00)
Title: Enhancement of hasUnsharedAliasing for void delegate() shared

- hasAliasing supports `void delegate() immutable`
- hasAliasing supports `immutable(void delegate())`
- hasUnsharedAliasing supports `void delegate() shared` and `void delegate() immutable`
- hasUnsharedAliasing supports `immmutable(void delegate())`
- Add some unittest cases.