Auto merge of #51201 - estebank:dotdot, r=petrochenkov

Accept `..` in incorrect position to avoid further errors

We currently give a specific message when encountering a `..` anywhere
other than the end of a pattern. Modify the parser to accept it (while
still emitting the error) so that we don't also trigger "missing fields
in pattern" errors afterwards.

Add suggestions to either remove trailing `,` or moving the `..` to the
end.

Follow up to #49268.

0 files changed, 0 insertions, 0 deletions