genmatch.c: Remove <map>, <utility> and <string> includes.

genmatch.c: Remove <map>, <utility> and <string> includes.

2014-10-30  Richard Biener  <rguenther@suse.de>

	* genmatch.c: Remove <map>, <utility> and <string> includes.
	Include ggc.h and hash-map.h.
	(ggc_internal_cleared_alloc): Provide stub definition.
	(ggc_free): Likewise.
	(struct capture_id_map_hasher): New traits for hash_map.
	(cid_map_t): New typedef.
	(everywhere else): Replace std::map use with cid_map_t.
	* hash-map.h (hash_map::elements): New member function.
	* Makefile.in (build/genmatch.o): Add $(HASH_TABLE_H),
	hash-map.h and $(GGC_H) as dependency.

From-SVN: r216940