Missed code fix suggestions on `void*`/`IntPtr*`

[elachlan]

These examples should have been suggested as candidates for a fix, but weren't.

https://github.com/dotnet/winforms/blob/be03f45ccd99fded5a317daf825dc8bb6bbabb5c/src/System.Windows.Forms/src/System/Windows/Forms/NativeWindow.cs#L513

https://github.com/dotnet/winforms/blob/be03f45ccd99fded5a317daf825dc8bb6bbabb5c/src/System.Windows.Forms/src/System/Windows/Forms/AccessibleObject.cs#L757-L762