Modules: support for modules native data types.

src/db.c

@@ -731,6 +731,10 @@ void typeCommand(client *c) {
         case OBJ_SET: type = "set"; break;
         case OBJ_ZSET: type = "zset"; break;
         case OBJ_HASH: type = "hash"; break;
+        case OBJ_MODULE: {
+            moduleValue *mv = o->ptr;
+            type = mv->type->name;
+        }; break;
         default: type = "unknown"; break;
         }
     }