private CauseItem @NotNull [] findRelationCause(RelationType relationType, MemoryStateChange leftChange, MemoryStateChange rightChange) {
    return findRelationCause(relationType, leftChange, leftChange.myTopOfStack, rightChange, rightChange.myTopOfStack);
  }
private CauseItem @NotNull [] findRelationCause(RelationType relationType, MemoryStateChange leftChange, MemoryStateChange rightChange)