fn find_storage_target_before(
arena: &[DebugNode],
trace_node_idx: usize,
current_absolute_step: usize,
slot: U256,
space: StorageSpace,
) -> Option<StorageTarget>fn find_storage_target_before(
arena: &[DebugNode],
trace_node_idx: usize,
current_absolute_step: usize,
slot: U256,
space: StorageSpace,
) -> Option<StorageTarget>