PR c++/18747
	* pt.c (check_template_variable): New.
	(num_template_headers_for_class): Split out...
	* decl.c (grokdeclarator): ...from here.
	(start_decl): Remove redundant diagnostic.
	* cp-tree.h: Declare them
	* parser.c (cp_parser_single_declaration): Call check_template_variable.
.
Co-Authored-By: Jason Merrill <jason@redhat.com>

From-SVN: r190842