tree 2d91f92ea24f51ea2164cbe34b6bfc019a548eee
parent 9fbaa8aa9228a542c8b231addce078954864bfd4
author Matthias Bläsing <mblaesing@doppel-helix.eu> 1662809902 +0200
committer Matthias Bläsing <mblaesing@doppel-helix.eu> 1663001290 +0200

Stabilize Foldingmanager for antlr

- in error situations tokens are only partially defined, thus need to
  be null checked
- antlr seems to be able to return contexts with start tokens with a
  higher position than the end token
- it can happen, that identical folds will be generated - this must be
  filtered before passed on to CSL