Raise an aborting signal without UB

tests/ui/process/signal-exit-status.rs

@@ -4,14 +4,16 @@
 // ignore-windows
 // ignore-fuchsia code returned as ZX_TASK_RETCODE_EXCEPTION_KILL, FIXME (#58590)
 
+#![feature(core_intrinsics)]
+
 use std::env;
 use std::process::Command;
 
 pub fn main() {
     let args: Vec<String> = env::args().collect();
     if args.len() >= 2 && args[1] == "signal" {
-        // Raise a segfault.
-        unsafe { *(1 as *mut isize) = 0; }
+        // Raise an aborting signal without UB
+        core::intrinsics::abort();
     } else {
         let status = Command::new(&args[0]).arg("signal").status().unwrap();
         assert!(status.code().is_none());