GitLab

	* pt.c (convert_nontype_argument): Fix -fpermissive allowing
	integer overflow.
	* semantics.c (potential_constant_expression_1): Check TREE_OVERFLOW.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@170771 138bc75d-0d04-0410-961f-82ee72b054a4