PR c++/59791
	* pt.c (tsubst_decl) [VAR_DECL]: Allow in unevaluated context.
	(tsubst_copy): Use it if lookup fails.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@207224 138bc75d-0d04-0410-961f-82ee72b054a4