simplify the bitmap alloc_stat functions with c++

simplify the bitmap alloc_stat functions with c++

gcc/fortran/ChangeLog:

2017-07-28  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

	* resolve.c (find_reachable_labels): Adjust.

gcc/ChangeLog:

2017-07-28  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

	* bitmap.c (bitmap_obstack_alloc_stat): Rename to bitmap_alloc.
	(bitmap_gc_alloc_stat): Rename to bitmap_gc_alloc.
	* bitmap.h (bitmap_obstack_alloc_stat): Adjust prototype.
	(bitmap_gc_alloc_stat): Likewise.
	(BITMAP_ALLOC, BITMAP_GGC_ALLOC): Adjust.

From-SVN: r250709