bors 60538d6c8e Auto merge of #5559 - alex-700:fix-while-let-on-iterator-fp, r=flip1995
Fix FP on while-let-on-iterator

- fix `is_refutable` for slice patterns
- fix `is_refutable` for bindings
- add some TODO-s for cases, which can not be fixed easily

fixes #3780

changelog: fix FP on while-let-on-iterator for arrays and bindings
2020-05-02 15:30:58 +00:00
..