Don't typecheck recovered method call from suggestion

[jieyouxu]

Only make the use-dot-operator-to-call-method suggestion, but do not double down and use the recovered type to perform method call typechecking as it will produce confusing diagnostics relevant for the fixed code.

Code Sample

struct Client;

impl Client {
    fn post<T: std::ops::Add>(&self, _: T, _: T) {}
}

fn f() {
    let c = Client;
    post(c, ());
}

Before This PR

error[[E0277]](https://doc.rust-lang.org/stable/error_codes/E0277.html): cannot add `()` to `()`
 --> src/lib.rs:9:5
  |
9 |     post(c, ());
  |     ^^^^^^^^^^^ no implementation for `() + ()`
  |
  = help: the trait `Add` is not implemented for `()`
note: required by a bound in `Client::post`
 --> src/lib.rs:4:16
  |
4 |     fn post<T: std::ops::Add>(&self, _: T, _: T) {}
  |                ^^^^^^^^^^^^^ required by this bound in `Client::post`

error[[E0061]](https://doc.rust-lang.org/stable/error_codes/E0061.html): this function takes 2 arguments but 1 argument was supplied
 --> src/lib.rs:9:5
  |
9 |     post(c, ());
  |     ^^^^ an argument of type `()` is missing
  |
note: method defined here
 --> src/lib.rs:4:8
  |
4 |     fn post<T: std::ops::Add>(&self, _: T, _: T) {}
  |        ^^^^                   -----  ----  ----
help: provide the argument
  |
9 |     post((), ())(c, ());
  |         ++++++++

error[[E0425]](https://doc.rust-lang.org/stable/error_codes/E0425.html): cannot find function `post` in this scope
 --> src/lib.rs:9:5
  |
9 |     post(c, ());
  |     ^^^^ not found in this scope
  |
help: use the `.` operator to call the method `post` on `&Client`
  |
9 -     post(c, ());
9 +     c.post(());
  |

Some errors have detailed explanations: E0061, E0277, E0425.
For more information about an error, try `rustc --explain E0061`.

After This PR

error[E0425]: cannot find function `post` in this scope
 --> tests/ui/typeck/issue-106929.rs:9:5
  |
9 |     post(c, ());
  |     ^^^^ not found in this scope
  |
help: use the `.` operator to call the method `post` on `&Client`
  |
9 -     post(c, ());
9 +     c.post(());
  |

error: aborting due to previous error

For more information about this error, try `rustc --explain E0425`.

Fixes #106929.

[rustbot]

r? @oli-obk

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[oli-obk]

oof yea, that makes sense!

@bors r+ rollup

[bors]

📌 Commit e11ffb6 has been approved by oli-obk

It is now in the queue for this repository.