[patch] Do not report non-executed blocks in Ada coverage

[Jeff Law]

On 11/03/2017 05:51 AM, Eric Botcazou wrote:
> Hi,
> 
> as explained in
>   https://gcc.gnu.org/ml/gcc-patches/2017-11/msg00105.html
> we don't (necessarily) want to report non-executed blocks in Ada.
> 
> The couple of attached patches prevent this from happening by detecting 
> whether we are dealing with an Ada file; the first variant is optimal, the 
> second variant is slightly more general in case other languages need it too.
> 
> Tested on x86_64-suse-linux, OK for the mainline (and which one)?
> 
> 
> 2017-11-03  Eric Botcazou  <ebotcazou@adacore.com>
> 
> 	* gcov.c (output_line_beginning): Document HAS_UNEXECUTED_BLOCK.
> 	(output_lines): Always pass false for HAS_UNEXECUTED_BLOCK to
> 	above function if this is for an Ada file.
Is this still needed?  I know Martin L did another teak for non-executed
blocks in Ada...  BUt I don't know enough to determine if it was
sufficient to address this problem.

jeff