konsti cab3a507bc Fix find_only_token_in_range with expression parentheses (#5645) ...

## Summary

Fix an oversight in `find_only_token_in_range` where the following code
would panic due do the closing and opening parentheses being in the
range we scan:
```python
d1 = [
    ("a") if # 1
    ("b") else # 2
    ("c")
]
```
Closing and opening parentheses respectively are now correctly skipped.

## Test Plan

I added a regression test

2023-07-10 15:55:19 +02:00

..

test/fixtures

Fix find_only_token_in_range with expression parentheses (#5645)

2023-07-10 15:55:19 +02:00