tracing= (Debugger::Context)

    /*
     *   call-seq:
     *      context.tracing = bool
     *
     *   Controls the tracing for this context.
     */
    static VALUE
    context_set_tracing(VALUE self, VALUE value)
    {
        debug_context_t *debug_context;

        debug_check_started();

        Data_Get_Struct(self, debug_context_t, debug_context);
        if(RTEST(value))
            CTX_FL_SET(debug_context, CTX_FL_TRACING);
        else
            CTX_FL_UNSET(debug_context, CTX_FL_TRACING);
        return value;
    }