my coalescer on ML kit: bad

[Stephen Weeks]

>                                     old coalescer           new coalescer
...
>         number of returns             220,922,989		220,945,534
...

To the best of my understanding, the fact that the number of returns
was different means that you ran different (Cps) programs.  The number
of returns is invariant across chunkification/coalescion.