Auto merge of #107671 - CastilloDel:master, r=estebank

Fix suggestions rendering when the diff span is multiline

Fixes #92741

cc `@estebank`

I think, I finally fixed. I still want to go back and try to clean up the code a bit. I'm open to suggestions.

Some examples of the new suggestions:

```
help: consider removing the borrow
  |
2 -     &
  |
```
```
help: consider removing the borrow
  |
2 -     &
3 -     mut
  |
```
```
help: consider removing the borrow
  |
2 -     &
3 -     mut if true { true } else { false }
2 +     if true { true } else { false }
  |
```

Should we add a test to ensure this behavior doesn't disappear in the future?

Author: bors