[C++ Patch] More grokdeclarator locations fixes

[Jason Merrill]

On 8/8/19 5:41 AM, Paolo Carlini wrote:
> Hi,
> 
> these are all more or less straightforward, exploit the existing 
> infrastructure. Nits: the first change also removes an 'a' in the 
> wording because all the other error messages - a few - mentioning class 
> or namespace don't have it; the fixes using EXPR_LOCATION also change 
> %qD to %qE because we are dealing with BIT_NOT_EXPRs.

OK.

Jason