[m-rev.] for post-commit review: determinism error messages

[Zoltan Somogyi]

For review by anyone.

Zoltan.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: Log.det_errors
Type: application/octet-stream
Size: 1592 bytes
Desc: not available
URL: <http://lists.mercurylang.org/archives/reviews/attachments/20160513/21f607f8/attachment-0002.obj>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: DIFF.det_errors
Type: application/octet-stream
Size: 24781 bytes
Desc: not available
URL: <http://lists.mercurylang.org/archives/reviews/attachments/20160513/21f607f8/attachment-0003.obj>