stage1 实现并修复ast2ir的核心功能的正确性

stage1/spl_intrin.h

@@ -9,6 +9,7 @@ typedef enum {
     SPL_INTRIN_SIZEOF,
     SPL_INTRIN_ALIGNOF,
     SPL_INTRIN_ASSERT,
+    SPL_INTRIN_BREAKPOINT,
     SPL_INTRIN_LEN,
 } spl_intrin_t;