Ensure that all fields of static sqlite3_module objects are explicitly

initialized, in order to hush-up nuisance compiler warnings.

FossilOrigin-Name: f3b3d712d6e58b1cb8fdebd2b6b3125080b6b3ac8c7c849a8cc1e5e778d62fe7

src/test_intarray.c

@@ -205,6 +205,11 @@ static sqlite3_module intarrayModule = {
   0,                           /* xRollback */
   0,                           /* xFindMethod */
   0,                           /* xRename */
+  0,                           /* xSavepoint */
+  0,                           /* xRelease */
+  0,                           /* xRollbackTo */
+  0,                           /* xShadowName */
+  0                            /* xIntegrity */
 };
 
 #endif /* !defined(SQLITE_OMIT_VIRTUALTABLE) */