+ void *id; /* Offset in the section (in hexadecimal form) */
+ char *name; /* Name of the type */
+ int size; /* Sometimes it si the byte size, sometimes it is the number of elements */
+ char *dw_type_id; /* DW_AT_type */
+ xbt_dynar_t members; /* if DW_TAG_structure_type, DW_TAG_union_type*/