Add match arm for Fuchsia status code upon an abort in a test

This change adds ZX_TASK_RETCODE_EXCEPTION_KILL as an expected status
code upon an abort in a test on Fuchsia. Tests

fixes #127539

Author: c6c7

library/test/src/test_result.rs

@@ -105,6 +105,9 @@ pub fn get_result_from_exit_code(
             }
             None => unreachable!("status.code() returned None but status.signal() was None"),
         },
+        // Upon an abort, Fuchsia returns the status code ZX_TASK_RETCODE_EXCEPTION_KILL.
+        #[cfg(target_os = "fuchsia")]
+        Some(-1028) => TestResult::TrFailed,
         #[cfg(not(unix))]
         None => TestResult::TrFailedMsg(format!("unknown return code")),
         #[cfg(any(windows, unix))]