Scm_SymbolClass  1894 src/gauche.h   SCM_CLASS_DECL(Scm_SymbolClass);
Scm_SymbolClass  1895 src/gauche.h   #define SCM_CLASS_SYMBOL       (&Scm_SymbolClass)
Scm_SymbolClass    44 src/symbol.c   SCM_DEFINE_BUILTIN_CLASS_SIMPLE(Scm_SymbolClass, symbol_print);