pub trait EvalContextExt<'mir, 'tcx: 'mir>: MiriInterpCxExt<'mir, 'tcx> {
fn invalid_handle(&mut self, function_name: &str) -> InterpResult<'tcx, !> { ... }
fn CloseHandle(
&mut self,
handle_op: &OpTy<'tcx, Provenance>
) -> InterpResult<'tcx> { ... }
}