[PATCH] Fix objc/29197: ICE after error with array type with undefined variable

[Stan Shebs]

Andrew Pinski wrote:
> Hi,
>   The problem here is that encode_type and objc_push_parm don't handle
> error_mark_node that well.  This fixes that problem by having them
> handle it.
>
> OK?  Bootstrapped and tested on i686-linux-gnu with no regressions.
> Note I originally wrote this patch about a year and half ago and it
> still solves the ICE.
>   
This is fine, thanks!

Stan