NULL with row (IN)
cardinality error of row inside row
new[]
fixed layout


mysql-test/r/row.result:
  test of optimized IN with Rows
  test of NULL with row
  test of cardinality error of row inside row
mysql-test/t/row.test:
  test of optimized IN with Rows
  test of NULL with row
  test of cardinality error of row inside row
sql/item_cmpfunc.cc:
  optimized IN with Rows
  NULL with row (IN)
  cardinality error of row inside row
sql/item_cmpfunc.h:
  optimized IN with Rows
  NULL with row (IN)
  cardinality error of row inside row
  fixed layout
sql/sql_list.h:
  fixed layout
  new[]