[PATCH] Fix PR objc/68438 (uninitialized source ranges)

[David Malcolm]

On Mon, 2015-11-23 at 10:25 -0700, Jeff Law wrote:
> On 11/23/2015 04:13 AM, Joseph Myers wrote:
> > On Sun, 22 Nov 2015, David Malcolm wrote:
> >
> >> Is there (or could there be) a precanned dg- directive to ask if ObjC is
> >> available?
> >
> > I don't think so.  Normal practice is that each language's tests are in
> > appropriate directories for that language, with runtest never called with
> > a --tool option for that language if it wasn't built.
> Right.  Which argues that we really want to create a new test directory 
> for objc plugin tests.

Attached is a revised version of the patch which creates an
objc.dg/plugin subdirectory, and builds the plugin that way (directly
reusing the plugin src from the gcc.dg subdir).

Successfully bootstrapped&regrtested on x86_64-pc-linux-gnu; adds 16
PASS results to objc.sum.

OK for trunk?

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