Import SQLite 3.8.7.4.

third_party/sqlite/src/test/threadtest3.c

Index: third_party/sqlite/src/test/threadtest3.c
diff --git a/third_party/sqlite/src/test/threadtest3.c b/third_party/sqlite/src/test/threadtest3.c
index cb7e2fa41b190d7ccc2613503ac6a60dcf1aae72..084ca022a9808e83a78315b759c76f097bf14ff1 100644
--- a/third_party/sqlite/src/test/threadtest3.c
+++ b/third_party/sqlite/src/test/threadtest3.c
@@ -1394,7 +1394,10 @@ static void dynamic_triggers(int nMs){
   print_and_free_err(&err);
 }
 
+
+
 #include "tt3_checkpoint.c"
+#include "tt3_index.c"
 
 int main(int argc, char **argv){
   struct ThreadTest {
@@ -1414,6 +1417,8 @@ int main(int argc, char **argv){
 
     { checkpoint_starvation_1, "checkpoint_starvation_1", 10000 },
     { checkpoint_starvation_2, "checkpoint_starvation_2", 10000 },
+
+    { create_drop_index_1, "create_drop_index_1", 10000 },
   };
 
   int i;