As I was looking through the WT sources for bitmap related code, I came across code in the block_cache/block_chunkcache.c that uses its own hand-rolled bitmap manipulation functions instead of the standard (vetted and performant) functions in include/bitstring_inline.h.

Consulting with the authors, they didn't know the standard functions existed.

This ticket is to change the block_chunkcache.c bitmap code to use the standard functions.