r297702 - [CodeGen][ObjC] Fix a bug where the type of an ivar wasn't encoded

[Joerg Sonnenberger via cfe-commits]

On Thu, Jun 01, 2017 at 05:58:41PM -0700, Akira Hatanaka wrote:
> It crashes when there is an anonymous ivar of a bitfield type.
> 
> @interface FormatScanner {
>   int : 1;
> }
> @end
> 
> @implementation FormatScanner
> @end
> 
> I'm not sure if the code above is valid or not, but out of curiosity,
> why would you want an anonymous bitfield variable?

It's a reduced test case. The original test case has a variable name in
it.

Joerg