This is a backport of commit 18535a40
from 10.6.

lock_release(): Implement innodb_evict_tables_on_commit_debug.
Before releasing any locks, collect the identifiers of tables to
be evicted. After releasing all locks, look up for the tables and
evict them if it is safe to do so.

trx_commit_in_memory(): Invoke trx_update_mod_tables_timestamp()
before lock_release(), so that our locks will protect the tables
from being evicted.