[m-rev.] for post-commit review: fix tests/invalid failures, part 1

[Zoltan Somogyi]

For review by anyone.

Zoltan.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: Log.itf1
Type: application/octet-stream
Size: 1263 bytes
Desc: not available
URL: <http://lists.mercurylang.org/archives/reviews/attachments/20250914/3a432cae/attachment-0002.obj>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: DIFF.itf1
Type: application/octet-stream
Size: 16628 bytes
Desc: not available
URL: <http://lists.mercurylang.org/archives/reviews/attachments/20250914/3a432cae/attachment-0003.obj>