D-Programming-Language/dmd — pull request #1306 by donc (2012-11-20 11:46:58+00:00)
Title: 'Fix' warnings from PVS Studio.

PVS Studio didn't find anything of value, there was only one non-spurious warning (ctfeexpr:142).
Its best recommendation was to undo the change recommended by the previous static analysis tool...

Most of these changes are signed/unsigned warnings. Removed a few tests of the form "unsigned_val >= 0" but they were all in asserts anyway. The only actual bug was in showCtfeExpr, which is only used in compiler debugging anyway.