parse.y (nested_name_specifier): Use explicit_template_type.

parse.y (nested_name_specifier): Use explicit_template_type.

	* parse.y (nested_name_specifier): Use explicit_template_type.
	(typename_sub): Allow a template_type, an explicit_template_type,
	or an implicit template type at the end.
	* lex.c (yyprint): Handle a PTYPENAME being a TEMPLATE_DECL.
	* decl.c (make_typename_type): Handle template-id where the name
	is a TEMPLATE_DECL.
	* call.c (build_scoped_method_call): Handle member template
	destructor call.
	* pt.c (tsubst_copy, METHOD_CALL_EXPR): Don't assume a member
	destructor is represented by the type.

From-SVN: r18303