Nullable: Int32 (#23443)
Nullable: Int32 (#23443)

* Nullable: Int32

* remove restore and move nullable up front

* remove trailing \n after #nullable to make it easier to remove later

cshung/coreclr,poizan42/coreclr,krk/coreclr,krk/coreclr,cshung/coreclr,wtgodbe/coreclr,cshung/coreclr,wtgodbe/coreclr,cshung/coreclr,poizan42/coreclr,krk/coreclr,poizan42/coreclr,wtgodbe/coreclr,poizan42/coreclr,krk/coreclr,wtgodbe/coreclr,wtgodbe/coreclr,cshung/coreclr,poizan42/coreclr,krk/coreclr,cshung/coreclr,wtgodbe/coreclr,krk/coreclr,poizan42/coreclr