makes asmnostackframe work with cpp member #22411 (#22429)

tests/cpp/tvirtual.nim

@@ -79,3 +79,40 @@ type Doo = object
 proc naiveMember(x: Doo): int {. virtual .} = 2
 discard naiveMember(Doo())
 
+#asmnostackframe works with virtual
+{.emit:"""/*TYPESECTION*/
+  template<typename T>
+  struct Box {
+      T* first;
+     
+      Box(int x){
+        first = new T(x);
+      };
+  };
+  struct Inner {
+    int val;
+    //Coo() = default;
+    Inner(int x){
+      val = x;
+    };
+  };
+  struct Base {
+    virtual Box<Inner> test() = 0;
+  };
+""".}
+
+type 
+  Inner {.importcpp.} = object
+  Base {.importcpp, inheritable.} = object
+  Child  = object of Base
+  Box[T] {.importcpp, inheritable.} = object
+    first: T
+
+proc makeBox[T](x:int32): Box[T] {.importcpp:"Box<'0>(@)", constructor.}
+
+proc test(self: Child): Box[Inner] {.virtual, asmnostackframe.} = 
+  let res {.exportc.} = makeBox[Inner](100)
+  {.emit:"return res;".}
+  
+
+discard Child().test()