Scm_GenericUpdateDirectMethod  146 src/class.c    SCM_DEFINE_GENERIC(Scm_GenericUpdateDirectMethod, Scm_NoNextMethod, NULL);
Scm_GenericUpdateDirectMethod 2320 src/class.c                             &Scm_GenericUpdateDirectMethod, 3, 0,
Scm_GenericUpdateDirectMethod 3073 src/class.c        GINIT(&Scm_GenericUpdateDirectMethod, "update-direct-method!");