[rbi] Make all PartitionOpErrors noncopyable types.
I am going to be adding support to passes for emitting IsolationHistory behind a
flag. As part of this, we need to store the state of the partition that created
the error when the error is emitted. A partition stores heap memory so it makes
sense to make these types noncopyable types so we just move the heap memory
rather than copying it all over the place.
