case BOOLEAN_TYPE:
is_back_referenceable_type (type)     tree type;{  /* For some reason, the Java folks don't want back refs on these.  */  if (TYPE_FOR_JAVA (type))    return 0;  switch (TREE_CODE (type))     {    case INTEGER_TYPE:    case REAL_TYPE:    case VOID_TYPE:    case BOOLEAN_TYPE:      /* These types have single-character manglings, so there's no	 point in generating back-references.  */      return 0;             case TEMPLATE_TYPE_PARM:      /* It would be a bit complex to demangle signatures correctly if	 we generated back-references to these, and the manglings of	 type parameters are short.  */      return 0;    default:      return 1;    }}