Bug#19420253 : ASSERT \'S_LATCH == RW_LOCK_OWN(&INDEX->LOCK, RW_LOCK_S)\' AT ROW0INS.CC

The assertion code was insufficient. Adjusted also for SX lock, not only for S lock. Approved by Jimmy by IM

Author: Yasufumi Kinoshita

storage/innobase/row/row0ins.cc

@@ -1915,7 +1915,8 @@ row_ins_scan_sec_index_for_duplicate(
 
 
 #ifdef UNIV_SYNC_DEBUG
-ut_ad(s_latch == rw_lock_own(&index->lock, RW_LOCK_S));
+ut_ad(s_latch == rw_lock_own_flagged(
+&index->lock, RW_LOCK_FLAG_S | RW_LOCK_FLAG_SX));
 #endif /* UNIV_SYNC_DEBUG */
 
 n_unique = dict_index_get_n_unique(index);