[C++ Patch] Use declspecs->locations more in grokdeclarator (and grokvardecl)

[Jason Merrill]

OK.

On Fri, Jun 22, 2018 at 1:18 PM, Paolo Carlini <paolo.carlini@oracle.com> wrote:
> Hi,
>
> this rather straightforward patch simply uses available location information
> - in the form of declspecs->locations - in diagnostic messages. In order to
> do that, the information is also propagated to bad_specifiers and
> mark_inline_variable. Tested x86_64-linux.
>
> Thanks, Paolo.
>
> ///////////////////
>