mysql-test/r/bdb.result:
  Add new results
mysql-test/r/innodb.result:
  Add new results
mysql-test/t/bdb.test:
  Add simple test that large keys are allowed
mysql-test/t/innodb.test:
  Add simple test that large keys are allowed
sql/unireg.h:
  Allow key length of 3K even on 32-bit platforms