Abstract with forward meta does not support cpp.Struct<T>

[mikaib]

@:forward
abstract Vector2(cpp.Struct<Vector2Data>) {
   // ...
}

Vector2Data contains x and y fields. When using Vector2Data wrapped in cpp.Struct<T> and an abstract with the "@:forward" meta on it, intellij-haxe will fail to "forward" the fields to Vector2.

The following example is correctly handled by intellij-haxe:

The following example is not: