Add #[track_caller] to panic_any

[veber-alex]

Report the panic location from the user code.

use std::panic;
use std::panic::panic_any;

fn main() {
    panic::set_hook(Box::new(|panic_info| {
        if let Some(location) = panic_info.location() {
            println!(
                "panic occurred in file '{}' at line {}",
                location.file(),
                location.line(),
            );
        } else {
            println!("panic occurred but can't get location information...");
        }
    }));

    panic_any(42);
}

Before:
panic occurred in file '/rustc/ff2c947c00f867b9f012e28ba88cecfbe556f904/library/std/src/panic.rs' at line 59

After:
panic occurred in file 'src/main.rs' at line 17

[rust-highfive]

Thanks for the pull request, and welcome! The Rust team is excited to review your changes, and you should hear from @yaahc (or someone else) soon.

If any changes to this PR are deemed necessary, please add them as extra commits. This ensures that the reviewer can see what has changed since they last reviewed the code. Due to the way GitHub handles out-of-date commits, this should also make it reasonably obvious what issues have or haven't been addressed. Large or tricky changes may require several passes of review and changes.

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[m-ou-se]

Thanks!

@bors r+

[bors]

📌 Commit ef13f27 has been approved by m-ou-se

[bors]

⌛ Testing commit ef13f27 with merge 18135ec...

[bors]

☀️ Test successful - checks-actions
Approved by: m-ou-se
Pushing 18135ec to master...