Rollup merge of #38617 - pnkfelix:double-reference, r=pnkfelix

Detect double reference when applying binary op

``` rust
let vr = v.iter().filter(|x| {
    x % 2 == 0
});
```

will now yield the following compiler output:

``` bash
ERROR binary operation `%` cannot be applied to type `&&_`
NOTE this is a reference of a reference to a type that `%` can be applied to,
you need to dereference this variable once for this operation to work
NOTE an implementation of `std::ops::Rem` might be missing for `&&_`
```

The first NOTE is new.

Fix #33877

----

Thanks to @estebank for providing the original PR #34420 (of which this is a tweaked rebase).

0 files changed, 0 insertions, 0 deletions