question_mark: avoid incorrect suggestion when ref binding used

[notriddle]

changelog: [question_mark]: avoid incorrect suggestion when ref binding used

Fixes #13417

[rustbot]

r? @Manishearth

rustbot has assigned @Manishearth.
They will have a look at your PR within the next two weeks and either review your PR or reassign to another reviewer.

Use r? to explicitly pick a reviewer

[Manishearth]

r? clippy

swamped this week

[blyxyas]

I'm finding this code seriously hard to read, could you refactor it? If an
external viewer having the context for this contributions finds it hard to
read, I can imagine that someone 3 months from now can find it very very hard

[notriddle]

I'm not sure how to refactor this code to be more readable.

But, since this is a corner case and not actually important, I can change it to avoid giving wrong answers by just doing nothing. Skipping the part where it tries to figure out a working fix simplifies it a lot.

[blyxyas]

I think it's better to do the suggestion even at the cost of a little less maintainability. Could you revert the second commit (I've suggested some renames)

[blyxyas]

LGTM, thanks! ❤️ Could you squash the commits?

[notriddle]

Sure. It's squashed.