* gcc.target/powerpc/pr18096-1.c: Change dg-warning to dg-error.
	* gcc.dg/cpp/include2.c: Ditto.
	* gcc.dg/cpp/mac-dir-2.c: Ditto.
	* gcc.dg/cpp/paste5.c: Ditto.
	* gcc.dg/cpp/paste6.c: Ditto.
	* gcc.dg/cpp/paste8.c: Ditto.
	* gcc.dg/cpp/paste11.c: Ditto.
	* gcc.dg/cpp/paste13.c: Ditto.
	* gcc.dg/cpp/skipping2.c: Ditto.
	* gcc.dg/reg-vol-struct-1.c: Ditto.
	* gcc.dg/Wshadow-1.c: Ditto.
	* gcc.dg/cpp/trad/comment.c: Ditto.
	* gcc.dg/cpp/trad/literals-2.c: Change dg-error to dg-warning.
	* gcc.dg/cpp/if-2.c: Ditto.
	* gcc.dg/array-5.c: Ditto.
	* gcc.dg/inline-15.c: Ditto.
	* gcc.dg/pr27953.c: Ditto.
	* gcc.dg/Wno-c++-compat.c: Ditto.

Co-Authored-By: Manuel López-Ibáñez <manu@gcc.gnu.org>

From-SVN: r124811