bug: Incorrect diagnostic placement when returning wrong type

[piotmag769]

Bug Report

Cairo version:

2.8.2

Current behavior:

fn incorrect_return_type() {
    let x = 5;
    x
}

Diagnostic point to the variable definition and blame the impossibility of casting

error: Mismatched types. The type `()` cannot be created from a numeric literal.
 --> {SOME_PATH}:16:17
        let x = 5;
                ^

Expected behavior:

Imo it should show the actual root cause of the issue. That's how it looks in Rust:

error[E0308]: mismatched types
  --> crates/cairo-lang-language-server/src/lang/diagnostics/mod.rs:98:9
   |
96 |     fn incorrect_return_type() {
   |                               - expected `()` because of default return type
97 |         let x = 5;
98 |         x
   |         ^ expected `()`, found integer