Test for fix made by Monty for BUG#37276 (CHECK TABLE said Invalid key block...

Test for fix made by Monty for BUG#37276 (CHECK TABLE said Invalid key block position: 15731098820608  key
+# block size: 8192  file_length: 425984). Other corruption cases still not fixed.
Without the fix, the test would yield the corruption message in CHECK TABLE.

mysql-test/r/maria-big2.result:
  result
mysql-test/t/maria-big2.test:
  test for bugfix

mysql-test/r/maria-big2.result

+create table t2(id int,a varchar(255),b varchar(255),key(a))engine=maria row_format=dynamic transactional=0;
+Table	Op	Msg_type	Msg_text
+test.t2	check	status	OK
+Table	Op	Msg_type	Msg_text
+test.t2	check	status	OK