Fix g++.dg/abi/anon2.C with -std=c++98

	* g++.dg/abi/anon2.C: Don't scan assembler for c++98.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@208307 138bc75d-0d04-0410-961f-82ee72b054a4