Fix regression:

even if there is no INIT method for the base type,
the container still defines a INIT method.

m-list.h

@@ -54,7 +54,7 @@
 #define LISTI_OPLIST(arg) LISTI_OPLIST2 arg
 
 #define LISTI_OPLIST2(name, oplist)                                     \
-  (M_IF_METHOD(INIT, oplist)(INIT(M_C(name, _init)),),                  \
+  (INIT(M_C(name, _init)),                                              \
    INIT_SET(M_C(name, _init_set)),					\
    INIT_WITH(API_1(M_INIT_VAI)),                                        \
    SET(M_C(name, _set)),						\