PR c++/27278

	* decl.c (grok_op_properties): Skip operators with invalid args
	when checking for class-type or enum-type args.

	* g++.dg/parse/operator7.C: New test.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@113389 138bc75d-0d04-0410-961f-82ee72b054a4