cmdutil: sort unresolved paths
I noticed that `hg status` was printing unresolved paths in a
non-deterministic order. This patch fixes that.
I'm not sure if the sorting should be done in
merge.mergestate.unresolved() instead. Either way fixes the
presentation issue.
Differential Revision: https://phab.mercurial-scm.org/D4929
fuzz: report error if Python code raised exception
I think that's what we wanted to do, given the most of the code block is
surrounded by try-except. 'lazymanifest(mdata)' is moved to the try block
as it can fail.