8a04372fec
The fix is admittedly quit literally just papering over. Long-term, I see two more principled approaches: * we switch to a fully tree-based impl, without parse . to_string step; with this approach, there shouldn't be any panics. The results might be nonsensical, but so was the original input. * we preserve the invariant that re-parsing constructed node is an identity, and make all the `make_xxx` method return an `Option`. closes #4044