[sql] Import reference version of SQLite 3.10.2.

third_party/sqlite/sqlite-src-3100200/test/vtab6.test

Index: third_party/sqlite/sqlite-src-3100200/test/vtab6.test
diff --git a/third_party/sqlite/sqlite-src-3080704/test/vtab6.test b/third_party/sqlite/sqlite-src-3100200/test/vtab6.test
similarity index 98%
copy from third_party/sqlite/sqlite-src-3080704/test/vtab6.test
copy to third_party/sqlite/sqlite-src-3100200/test/vtab6.test
index 10bf286ab0f15f1b91d0929ff2f928b477ea63e3..f8e0935a2835976da9d79fe62285c603466027ed 100644
--- a/third_party/sqlite/sqlite-src-3080704/test/vtab6.test
+++ b/third_party/sqlite/sqlite-src-3100200/test/vtab6.test
@@ -233,6 +233,11 @@ do_test vtab6-2.4 {
     SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.d
   }
 } {1 2 3 {} {} {} 2 3 4 {} {} {} 3 4 5 1 2 3}
+do_test vtab6-2.4.1 {
+  execsql {
+    SELECT * FROM t1 LEFT JOIN t2 ON t1.a IS t2.d
+  }
+} {1 2 3 {} {} {} 2 3 4 {} {} {} 3 4 5 1 2 3}
 do_test vtab6-2.5 {
   execsql {
     SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.d WHERE t1.a>1