Replace ~ with of

godot/nim/godotnim.nim

@@ -287,17 +287,12 @@ proc `as`*[T: NimGodotObject](obj: NimGodotObject, t: typedesc[T]): T =
                   T.name & "\n" & getStackTrace())
     result = nil
 
-proc `~`*[T: NimGodotObject](obj: NimGodotObject,
-                             t: typedesc[T]): bool {.inline.} =
-  ## Godot-specific inheritance check. You must use this over Nim's standard
-  ## ``of`` operator, because Nim does not know which object your script is
-  ## attached to in runtime. For example, if you create a
-  ## ``gdobj Bullet of Spatial`` and the ``Bullet`` is attached to a
-  ## ``MeshInstance``, ``myBullet of MeshInstance`` will return ``false``, but
-  ## ``myBullet ~ MeshInstance`` will return ``true``.
-  ## This is going to be changed to ``of`` in later versions, when Nim starts
-  ## supporting overloading ``of`` operator.
-  not obj.isNil and (obj of T or obj.linkedObject of T)
+proc `of`*[T: NimGodotObject](obj: NimGodotObject,
+                              t: typedesc[T]): bool {.inline.} =
+  ## Godot-specific inheritance check.
+  not obj.isNil and (system.`of`(obj, T) or system.`of`(obj.linkedObject, T))
+
+{.deprecated: [`~`: `of`].}
 
 proc newRStrLit(s: string): NimNode {.compileTime.} =
   result = newNimNode(nnkRStrLit)