gengtype: Support explicit pointers in template arguments

gcc/
2014-05-13  David Malcolm  <dmalcolm@redhat.com>

	* gengtype-parse.c (require3): Eliminate in favor of...
	(require4): New.
	(require_template_declaration): Update to support optional single *
	on a type.

	* gengtype.c (get_ultimate_base_class): Add a non-const overload.
	(create_user_defined_type): Handle a single level of explicit
	pointerness within template arguments.
	(struct write_types_data): Add field "kind".
	(filter_type_name): Handle "*" character.
	(write_user_func_for_structure_ptr): Require a write_types_data
	rather than just a prefix string, so that we can look up the kind
	of the wtd and use it as an index into wrote_user_func_for_ptr,
	ensuring that such functions are written at most once.  Support
	subclasses by invoking the marking function of the ultimate base
	class.
	(write_user_func_for_structure_body): Require a write_types_data
	rather than just a prefix string, so that we can pass this to
	write_user_func_for_structure_ptr.
	(write_func_for_structure): Likewise.
	(ggc_wtd): Add initializer of new "kind" field.
	(pch_wtd): Likewise.

	* gengtype.h (enum write_types_kinds): New.
	(struct type): Add field wrote_user_func_for_ptr to the "s"
	union member.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@210379 138bc75d-0d04-0410-961f-82ee72b054a4