(qty_phys_num{,_copy}_sugg): New variables.

(qty_phys_has{,_copy}_sugg): Deleted.
(qty_sugg_compare{,_1}): New functions.
(local_alloc): Allocate and init new vars instead of deleted ones.
(block_alloc): Update and use new vars.
Order quantities using new functions when allocating quantities with
suggested registers.
(combine_regs, find_free_reg): Use new vars to count number of suggestions.

From-SVN: r7356