Rename mdev_37977 test to deadlock_report

Use a descriptive area-based test name instead of a ticket number.
Reorder `--source` includes before the per-test header comment.

Author: arcivanov

…ql-test/suite/innodb/r/mdev_37977.result …st/suite/innodb/r/deadlock_report.resultmysql-test/suite/innodb/r/mdev_37977.result renamed to mysql-test/suite/innodb/r/deadlock_report.result mysql-test/suite/innodb/r/mdev_37977.result renamed to mysql-test/suite/innodb/r/deadlock_report.result

@@ -1,12 +1,12 @@
+--source include/not_embedded.inc
+--source include/have_innodb.inc
+--source include/count_sessions.inc
+
 --echo #
 --echo # MDEV-37977 InnoDB deadlock report incorrectly reports
 --echo #            rolled back transaction number
 --echo #
 
---source include/not_embedded.inc
---source include/have_innodb.inc
---source include/count_sessions.inc
-
 SET @save_print_all_deadlocks= @@GLOBAL.innodb_print_all_deadlocks;
 SET GLOBAL innodb_print_all_deadlocks= ON;