I wrote a short programm which detect and list unused variables.I'm sure it isn't perfect but it passed most of my test cases, but I think at the moment it isn't good enough to present it in announce. Maybe some of you have interest to help me. IMO something like this should be integrated into the D compiler.
Comments, suggestions and critism are desirable. Code: http://dpaste.dzfl.pl/c5f1d2ba Some of my testcases: http://dpaste.dzfl.pl/f74da85e