RFR (S) 8211926: Catastrophic size_t underflow in BitMap::*_large methods

[Aleksey Shipilev]

On 11/09/2018 09:02 PM, Kim Barrett wrote:
> Almost, but not quite, I'm afraid.  All but the first comment below
> are optional, though I think make things better.

Introduced helper method, moved the small_range_words to private, handled (l == r) corner case in
test. See:
  http://cr.openjdk.java.net/~shade/8211926/webrev.05/

-Aleksey

P.S. For the love of any deity of choice, can we please push this corner-case fix and move on to
solve meatier bugs? I appreciate the attention to details, but the economics of spending any more
time to this issue feels dubious to me.