BUG: None in Float64Index raising TypeError, should return False
- [x] closes #35788
- [x] tests added / passed
- [x] passes `black pandas`
- [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff`
- [x] whatsnew entry

thanks @jbrockmendel  @meeseeksdev backport 1.1.x