MOVE文の部分参照の境界チェックバグを修正
MOVE文の配列の境界チェックのテストを追加
fixed bug checking reference modification out of bounds for in  MOVE statement.
add tests checking Subscript out of bounds in  MOVE statement.
Merge pull request #3 from juflux/bug-check-part-ref

MOVE文の部分参照の境界チェックバグを修正
fixed bug checking reference modification out of bounds for in MOVE statement.