PR c++/43321
	* semantics.c (describable_type): Remove.
	* cp-tree.h: Likewise.
	* decl.c (cp_finish_decl): Don't call it.
	* init.c (build_new): Likewise.
	* parser.c (cp_parser_omp_for_loop): Likewise.
	* pt.c (tsubst_decl): Likewise.
	(do_auto_deduction): If we fail in a template, try again
	at instantiation time.

From-SVN: r175212