stage1 实现并修复ast2ir的核心功能的正确性

stage1/spl_intrin.c

@@ -8,6 +8,8 @@ static const spl_intrin_info_t g_intrin_table[] = {
                             SPL_INTRIN_RESULT_USIZE},
     [SPL_INTRIN_ASSERT] = {"@assert", SPL_INTRIN_ASSERT, SPL_INTRIN_FORM_CALL, 1, 2,
                            SPL_INTRIN_RESULT_UNIT},
+    [SPL_INTRIN_BREAKPOINT] = {"@breakpoint", SPL_INTRIN_BREAKPOINT, SPL_INTRIN_FORM_CALL, 0, 0,
+                               SPL_INTRIN_RESULT_UNIT},
     [SPL_INTRIN_LEN] = {"len", SPL_INTRIN_LEN, SPL_INTRIN_FORM_FIELD, 0, 0,
                         SPL_INTRIN_RESULT_USIZE},
 };