to crash".
 Changes from snapshot innodb-5.0-ss52.
 Note that buf_block_t::index should be protected by btr_search_latch
 or an s-latch or x-latch on the index page.
 btr_search_drop_page_hash_index(): Read block->index while holding
 btr_search_latch and use the cached value in the loop. Remove some
 redundant assertions.
 Also fix 13778. When FOREIGN_KEY_CHECKS=0 we still need to check that
 datatypes between foreign key references are compatible.
 Also added test cases to 9802.


innobase/btr/btr0sea.c:
  Changes from innodb-5.0-ss52
innobase/dict/dict0dict.c:
  Changes from innodb-5.0-ss52
innobase/dict/dict0load.c:
  Changes from innodb-5.0-ss52
innobase/include/buf0buf.h:
  Changes from innodb-5.0-ss52
innobase/include/dict0dict.h:
  Changes from innodb-5.0-ss52
innobase/include/dict0load.h:
  Changes from innodb-5.0-ss52
innobase/include/rem0cmp.h:
  Changes from innodb-5.0-ss52
innobase/rem/rem0cmp.c:
  Changes from innodb-5.0-ss52
innobase/row/row0mysql.c:
  Changes from innodb-5.0-ss52
mysql-test/r/innodb.result:
  Changes from innodb-5.0-ss52
mysql-test/t/innodb.test:
  Changes from innodb-5.0-ss52
sql/ha_innodb.cc:
  Changes from innodb-5.0-ss52
sql/ha_innodb.h:
  Changes from innodb-5.0-ss52