runtime: load ILR from the target stack, before switching stack in runtime.gogo
runtime: load ILR from the target stack, before switching stack in runtime.gogo

Failing to do this might spill a stale ILR on a future trap (e.g. future spill).

4ad/go,4ad/go,4ad/go,4ad/go,4ad/go,4ad/go,4ad/go,4ad/go