re PR testsuite/51128 (New LTO failures)

re PR testsuite/51128 (New LTO failures)

	PR testsuite/51128
	* gcc.dg/torture/pr23821.c: Skip if -fno-fat-lto-objects was passed.
	* gcc.dg/torture/pr39074.c: Ditto.
	* gcc.dg/torture/pr39074-2.c: Ditto.
	* gcc.dg/torture/pr42898.c: Ditto.
	* gcc.dg/torture/pr42898-2.c: Ditto.
	* gcc.dg/torture/pr45704.c: Ditto.
	* gcc.dg/torture/pr50472.c: Ditto.
	* gcc.dg/torture/pta-callused-1.c: Ditto.
	* gcc.dg/torture/pta-ptrarith-1.c: Ditto.
	* gcc.dg/torture/pta-ptrarith-2.c: Ditto.
	* gcc.dg/torture/pta-ptrarith-3.c: Ditto.
	* gcc.dg/torture/pta-escape-1.c: Ditto.
	* gcc.dg/torture/ipa-pta-1.c: Ditto.
	* gcc.dg/torture/ssa-pta-fn-1.c: Ditto.

From-SVN: r182016