re PR c++/27339 (out-of-class definition of value template parameter with private...

re PR c++/27339 (out-of-class definition of value template parameter with private type)

	PR c++/27339
	* cp-tree.h (perform_access_checks): New function.
	* semantics.c (perform_access_checks): New function.
	(perform_deferred_access_checks): Use it.
	* parser.c (cp_parser_simple_declaration): Adjust call to
	cp_parser_init_declarator.
	(cp_parser_type_parameter): Do not defer checks in default
	arguments.
	(cp_parser_explicit_specialization): Adjust call to
	cp_parser_single_declaration.
	(cp_parser_init_declarator): Perform template-parameter access
	checks.
	(cp_parser_parameter_declaration): Do not defer checks for
	template parameter default arguments.
	(cp_parser_template_declaration_after_export): Gather access
	checks for template parameters, and pass them to
	cp_parser_single_declaration.
	(cp_parser_template_parameter_access_checks): New function.
	(cp_parser_single_declaration): Add checks parameter.
	PR c++/27339
	* g++.dg/parser/access8.C: Adjust error marker.
	* g++.dg/template/access17.C: New test.
	* g++.dg/template/access18.C: Likewise.

From-SVN: r113819