Assigning the wrong fn type to a variable mentions 'pointer' vs 'item'

[TheNeikos]

Code

fn bar() {}

fn main() {
    let b: fn() -> u32 = bar;
}

Current output

error[E0308]: mismatched types
 --> src/main.rs:4:26
  |
4 |     let b: fn() -> u32 = bar;
  |            -----------   ^^^ expected fn pointer, found fn item
  |            |
  |            expected due to this
  |
  = note: expected fn pointer `fn() -> u32`
                found fn item `fn() {bar}`

Desired output

error[E0308]: mismatched types
 --> src/main.rs:4:26
  |
4 |     let b: fn() -> u32 = bar;
  |            -----------   ^^^ `fn` return types do not match, expected `fn() -> u32`, found `fn() -> ()`
  |            |
  |            expected due to this

Rationale and extra context

The current version is not wrong, but it is a bit confusing when one does not know the way rustc handles fn stuff.

I think that leading with what is not matching up would make it easier to see one's error. Especially in context for example of RA, where in-line errors only show the 'main' message.

Other cases

No response

Rust Version

Playground, Stable 1.79.0

Anything else?

No response