Message 391336 - Python tracker

We can also see this kind of thing with other literals, would that be in scope here?

e.g.

```
Python 3.9.4 (default, Apr  5 2021, 12:33:45) 
[Clang 12.0.0 (clang-1200.0.32.29)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> "foo"in ["foo", "bar"]
True
>>> [1,]in [[1,]]
True
```