Rollup merge of #69217 - LeSeulArtichaut:remove-lint-impl-op, r=estebank

Rollup merge of #69217 - LeSeulArtichaut:remove-lint-impl-op, r=estebank

Do not emit note suggesting to implement operation trait to foreign type

When a binary operation isn't valid, you will get a lint proposing to add a trait implementation to make the operation possible. However, this cannot be done for foreign types, such as types from `core` or `std`.

For example:
```
= note: an implementation of `std::ops::Add` might be missing for `std::option::Option<i8>`
```
As mentioned in https://github.com/rust-lang/rust/issues/60497#issuecomment-562665539:
> The note suggesting implementing Add<i8> should only be emitted if Option<i8> were local to the current crate, which it isn't, so in this case it shouldn't be emitted.

(I will use the CI to check tests for me, or my computer will just burn... and running IDEs is not possible on a pile of ashes)

r? @estebank