stage2 更多底层函数 stage1 layout正确使用 内置函数重新编写

stage1/spl_sema.h

@@ -5,6 +5,7 @@
 #include "spl_attr.h"
 #include "spl_diag.h"
 #include "spl_lang_type.h"
+#include "spl_layout.h"
 #include "spl_mpa.h"
 #include "spl_scope.h"
 #include "spl_type.h"
@@ -21,6 +22,7 @@ struct spl_module_loader {
 typedef struct {
     spl_ast_t *ast;
     spl_lang_type_t *type;
+    spl_layout_t *layout; /* 由 splc0 拥有并解析；sema 仅借用 */
     spl_scope_t *scope;
     spl_symbol_t root;
     spl_attr_t *attr;
@@ -32,8 +34,8 @@ typedef struct {
     spl_diag_t *diag;
 } spl_sema_t;
 
-void spl_sema_init(spl_sema_t *sema, spl_ast_t *ast, spl_lang_type_t *type, spl_scope_t *scope,
-                   spl_attr_t *attr);
+void spl_sema_init(spl_sema_t *sema, spl_ast_t *ast, spl_lang_type_t *type,
+                   spl_layout_t *layout, spl_scope_t *scope, spl_attr_t *attr);
 void spl_sema_drop(spl_sema_t *sema);
 
 void spl_sema_run_module(spl_sema_t *sema, spl_ast_node_ref_t module_ref);