r175326 - Rework the visibility computation algorithm in preparation

[John McCall]

On Feb 26, 2013, at 2:06 PM, Nico Weber <thakis at chromium.org> wrote:
> Thank you for landing this in r176112. However, things are still
> broken if one adds
> 
> class EXPORT MyFoo {  // happens without this EXPORT too
>  void calculateDrawProperties(Layer *rootLayer);
> };
> 
> between `class Layer;` and `class EXPORT Layer;` in the example above:

We should just not cache visibility for types.

John.