[patch testsuite]: Fix some mingw testcases in gcc.dg

[Rainer Orth]

Hi Kai,

> this patch fixes some regressions introduced by default-option
> -fms-extensions for mingw-targets.

you should state in your submissions *which* regressions were
introduced/*which* problem you are fixing.  While this may be obvious to
you, it's often not so to reviewers.

> ChangeLog
>
> 2014-03-17  Kai Tietz  <ktietz@redhat.com>
>
>     * anon-struct-1.c: Add -fno-ms-extensions option for mingw targets.
>     * anon-struct-11.c: Likewise.
>     * anon-struct-2.c: Likewise.
>     * c11-anon-struct-2.c: Likewise.
>     * c11-anon-struct-3.c: Likewise.

gcc.dg/ prefix missing in ChangeLog entries.

> Tested for i686-w64-mingw32, and x86_64-unknown-linux-gnu.  Ok for apply?

Ok with that change.

	Rainer

-- 
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Rainer Orth, Center for Biotechnology, Bielefeld University