MDEV-15907 ASAN heap-use-after-free in strnmov / .. /...

MDEV-15907 ASAN heap-use-after-free in strnmov / .. / fill_effective_table_privileges on concurrent GRANT and CREATE VIEW

rename a test file.

Closes #1253

mysql-test/t/mdev15907.test → mysql-test/t/information_schema_prepare.test

+#
+# MDEV-15907 ASAN heap-use-after-free in strnmov / .. / fill_effective_table_privileges on concurrent GRANT and CREATE VIEW
+#
 PREPARE stmt2 FROM "CREATE VIEW v AS SELECT * FROM INFORMATION_SCHEMA.TABLES";
 FLUSH PRIVILEGES;
 EXECUTE stmt2;