[PATCH] Fix to PR8880 (clang dies processing a for loop).

[Justin Bogner]

Serge Pavlov <sepavloff at gmail.com> writes:
> http://llvm-reviews.chandlerc.com/D2018

Neat! This also fixes a crash on the below bizarre construction, which
might be a good test case to add:

    for (({break;});;);