Better handling of missing closing or opening delimiters, well distinct by type of delimiter

[leonardo-m]

Code

This code is wrong, it lacks an open "(" to call abs():

pub fn foo(x: i64) -> i64 {
    x.abs)
}
fn main() {}

Current output

rustc 1.87.0-nightly gives the error messages:

error: mismatched closing delimiter: `)`
 --> ...\test.rs:1:27
  |
1 | pub fn foo(x: i64) -> i64 {
  |                           ^ unclosed delimiter
2 |     x.abs)
  |          ^ mismatched closing delimiter

error: unexpected closing delimiter: `}`
 --> ...\test.rs:3:1
  |
2 |     x.abs)
  |          - missing open `(` for this delimiter
3 | }
  | ^ unexpected closing delimiter

error: aborting due to 2 previous errors

Desired output

On this code I'd like rustc to give only one error, that says "- missing open ( for this delimiter", or something similar.

Rationale and extra context

I think rustc should consider {} () [] as totally distinct pairs of things. I think it isn't common for a programmer to mix them by mistake. It happens, but I think it happens quite less often than missing a correct pairing of { with } or ( with ) or [ with ] by mistake.

Other cases

Rust Version

rustc 1.87.0-nightly (665025243 2025-03-11)
binary: rustc
commit-hash: 6650252439d4e03368b305c42a10006e36f1545e
commit-date: 2025-03-11
host: x86_64-pc-windows-gnu
release: 1.87.0-nightly
LLVM version: 20.1.0

Anything else?

No response

[xizheyin]

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