PR c++/58022
	* g++.dg/template/abstract1.C: New.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@201337 138bc75d-0d04-0410-961f-82ee72b054a4
	PR c++/57901
	* semantics.c (build_data_member_initialization, constexpr_fn_retval):
	Use break_out_target_exprs instead of unshare_expr.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@201338 138bc75d-0d04-0410-961f-82ee72b054a4