D-Programming-Language/dmd — pull request #2346 by 9rnsr (2013-07-14 06:47:40+00:00)
Title: Issue 10141 - wrong error message with Tuple!(int) : Error: static assert "Cannot put a char[] into a Appender!(string)"

http://d.puremagic.com/issues/show_bug.cgi?id=10141

Essentially it's bad code if it branches based on the condition `global.errors != 0`.