ices/81827.rs: fixed with errors

[github-actions]

Issue: rust-lang/rust#81827

#![crate_name="0"]

fn r()->i{0|{#[cfg(r(0{]0

=== stdout ===
=== stderr ===
error: this file contains an unclosed delimiter
 --> /home/runner/work/glacier/glacier/ices/81827.rs:3:27
  |
3 | fn r()->i{0|{#[cfg(r(0{]0
  |          -  -             ^
  |          |  |
  |          |  unclosed delimiter
  |          unclosed delimiter

error: mismatched closing delimiter: `]`
 --> /home/runner/work/glacier/glacier/ices/81827.rs:3:23
  |
3 | fn r()->i{0|{#[cfg(r(0{]0
  |               -       ^^ mismatched closing delimiter
  |               |       |
  |               |       unclosed delimiter
  |               closing delimiter possibly meant for this

error: expected one of `)` or `,`, found `{`
 --> /home/runner/work/glacier/glacier/ices/81827.rs:3:23
  |
3 | fn r()->i{0|{#[cfg(r(0{]0
  |                       ^ expected one of `)` or `,`

error: aborting due to 3 previous errors

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