Try to improve foldrBit (for toMap)
Try to improve foldrBit (for toMap)

ekmett/containers,shockkolate/containers,iu-parfunc/containers,Zigazou/containers,iu-parfunc/containers,hvr/containers,shockkolate/containers,meiersi/psqueues-old,hvr/containers,shockkolate/containers,Zigazou/containers,ekmett/containers,ekmett/containers,iu-parfunc/containers,Zigazou/containers,hvr/containers