[m-rev.] for post-commit review: specialize one fold, move two

[Zoltan Somogyi]

For review by anyone.

Zoltan.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: Log.fold2
Type: application/octet-stream
Size: 788 bytes
Desc: not available
URL: <http://lists.mercurylang.org/archives/reviews/attachments/20221201/8873055d/attachment.obj>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: DIFF.fold2
Type: application/octet-stream
Size: 10789 bytes
Desc: not available
URL: <http://lists.mercurylang.org/archives/reviews/attachments/20221201/8873055d/attachment-0001.obj>