[PATCH] Fix to PR15537 - assertion failure when comparing atomic unsigned int to int.

[John McCall]

On Apr 24, 2013, at 9:57 PM, Doug Gregor <dgregor at apple.com> wrote:
>  I'm confused as to why we're not just extending the checks here:
> 
>    if (LHS.get()->getType()->isArithmeticType() &&
>        RHS.get()->getType()->isArithmeticType()) {
> 
>  to allow arithmetic or _Atomic of arithmetic?

Is there a way in which that road doesn't force us to require basically
every type-check in Sema to handle atomic types?  We should
canonicalize out atomic types before doing all this analysis.

John.