Corrected the error codes and messages for 5.1. This is to fix PB failures introduced by the patch for bug #27643.


mysql-test/r/ctype_ucs2_def.result:
  Corrected the error messages for 5.1
mysql-test/r/heap_hash.result:
  Corrected the error messages for 5.1
mysql-test/t/ctype_ucs2_def.test:
  Corrected the error codes for 5.1.
mysql-test/t/heap_hash.test:
  Corrected the error codes for 5.1.