message: Display span in Assert panic message
diff: @@ -164,7 +164,7 @@ fn codegen_fn_content<'a, 'tcx: 'a>(fx: &mut FunctionCx<'a, 'tcx, impl Backend>)
  } else {
  fx.bcx.ins().brz(cond, target, &[]);
  };
  - trap_panic(fx, format!("[panic] Assert {:?} failed at {:?}.", msg, bb_data.terminator().source_info.span));
  + trap_panic(fx, format!("[panic] Assert {:?} at {:?} failed.", msg, bb_data.terminator().source_info.span));
  }
  TerminatorKind::SwitchInt {
  