20041106-1.c, [...]: Match "attribute ignored" warnings when "packing" is the same as the ABI layout.

	* gcc.dg/20041106-1.c, gcc.dg/20030321-1.c, gcc.dg/pr17112-1.c,
	gcc.dg/pr17112-1.c, g++.dg/other/packed1.C,
	g++.dg/other/crash-4.C, g++.dg/ext/packed8.C: Match "attribute
	ignored" warnings when "packing" is the same as the ABI layout.

From-SVN: r107758