D-Programming-Language/phobos — pull request #544 by 9rnsr (2012-04-19 00:59:28+00:00)
Title: Issue 7878 - A problem with purity and general templated algorithms

http://d.puremagic.com/issues/show_bug.cgi?id=7878

Today template instantiation backtrace is implemented, so suppress errors is not useful.