[PATCH] D19080: allow SSAUpdater to be used for Swift

[Arnold Schwaighofer via llvm-commits]

aschwaighofer added a comment.

I don't see a reasonable way to write a unit test without either creating a stub IR or making the typedef typename Traits::PhiItT public and then just testing the presence.

I think swift users will notice when this breaks and complain.


http://reviews.llvm.org/D19080