How can I see which `using` statements provides a class in Visual Studio 2013?

And how can I detect conflicts?

I have this kind of code

`foo.cs`:

```
namespace foo
{
    class XmlConverter 
    {
    }
}

```

`bar.cs`:

```
namespace bar
{
    class XmlConverter 
    {
    }
}

```

And I need to use both `foo` and `bar` namespaces (both have multiple classes).

EDIT: I know I can rename my classes (or use aliases) but how can I detect this issue(wrong class being used) ? Is it even possible ?