stage1 将数组和聚合类型使用byte offset而不是slot idx

stage1/spl_parser.c

@@ -27,7 +27,7 @@ static int parse_fn_body(spl_comp_t *ctx, const char *fn_name, spl_type_info_t *
     int fi = spl_declare_func(ctx, fn_name, ret_type, nparams, 0, is_pub);
     ctx->current_func_idx = fi;
     ctx->current_ret_type = ret_type;
-    ctx->current_local_slot = 0;
+    ctx->current_local_bytes = 0;
 
     spl_push_scope(ctx);
 
@@ -48,7 +48,7 @@ static int parse_fn_body(spl_comp_t *ctx, const char *fn_name, spl_type_info_t *
             skip_nl(ctx);
         }
 
-        spl_patch(ctx, alloc_addr, ctx->current_local_slot - nparams);
+        spl_patch(ctx, alloc_addr, ctx->current_local_bytes / (int)sizeof(spl_val_t) - nparams);
         expect(ctx, TOK_R_BRACE);
     }