Redundant suggestion on E0283

[estebank]

error[E0283]: type annotations needed
 --> src/main.rs:2:44
  |
2 |     Some(()).into_iter().filter(|_| false).collect();
  |                                            ^^^^^^^ cannot infer type of the type parameter `B` declared on the associated function `collect`
  |
  = note: cannot satisfy `_: FromIterator<()>`
note: required by a bound in `collect`
help: consider specifying the generic argument
  |
2 |     Some(()).into_iter().filter(|_| false).collect::<B>();
  |                                                   +++++
help: consider specifying the type argument in the function call
  |
2 |     Some(()).into_iter().filter(|_| false).collect::<B>();
  |                                                   +++++

https://play.rust-lang.org/?version=stable&mode=debug&edition=2021&gist=459892bb874954bdc6749fea03bfcf6d

[ChayimFriedman2]

It duplicates the suggestion even without the .filter() call (https://play.rust-lang.org/?version=stable&mode=debug&edition=2021&gist=61df79395f43232a9d13a924c2ac860c) and on any iterator type I tried (not just IntoIterator).

[TaKO8Ki]

#93506 is related to this.

[estebank]

Closing in favor of #93506