fix merge error

source/runtime.c

@@ -1370,7 +1370,7 @@ JSValue gc_copy_value (JSContext *ctx, JSValue v, uint8_t *from_base, uint8_t *f
 
     /* Frame shortening: returned frames (caller == JS_NULL) only need
        [this][args][closure_locals] — shrink during copy. */
-    if (0 && type == OBJ_FRAME) {
+    if (type == OBJ_FRAME) {
       JSFrame *f = (JSFrame *)hdr_ptr;
       if (JS_IsNull (f->caller) && JS_IsPtr (f->function)) {
         /* fn may be forwarded, but kind (offset 18) and u.cell.code (offset 24)