tree-ssa-loop-im.c: remove typedefs that hide pointerness

tree-ssa-loop-im.c: remove typedefs that hide pointerness

gcc/ChangeLog:

2015-09-13  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

	* tree-ssa-loop-im.c (mem_ref_loc_p): Remove typedef.
	(mem_ref_p): Likewise.
	(outermost_indep_loop): Adjust.
	(mem_ref_in_stmt): Likewise.
	(determine_max_movement): Likewise.
	(mem_ref_alloc): Likewise.
	(record_mem_ref_loc): Likewise.
	(set_ref_stored_in_loop): Likewise.
	(mark_ref_stored): Likewise.
	(gather_mem_refs_stmt): Likewise.
	(mem_refs_may_alias_p): Likewise.
	(for_all_locs_in_loop): Likewise.
	(struct rewrite_mem_ref_loc): Likewise.
	(rewrite_mem_refs): Likewise.
	(struct first_mem_ref_loc_1): Likewise.
	(first_mem_ref_loc): Likewise.
	(struct sm_set_flag_if_changed): Likewise.
	(execute_sm_if_changed_flag_set): Likewise.
	(execute_sm): Likewise.
	(hoist_memory_references):
	(struct ref_always_accessed): Likewise.
	(ref_always_accessed_p): Likewise.
	(refs_independent_p): Likewise.
	(record_dep_loop): Likewise.
	(ref_indep_loop_p_1): Likewise.
	(ref_indep_loop_p_2): Likewise.
	(ref_indep_loop_p): Likewise.
	(can_sm_ref_p): Likewise.
	(find_refs_for_sm): Likewise.
	(tree_ssa_lim_finalize): Likewise.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227727 138bc75d-0d04-0410-961f-82ee72b054a4