Visual Studio 2012 Test Project Mixed Mode Runtime

I'm currently working in the Visual Studio 2012 RC with a test project. I have included the following assemblies:

• Microsoft.SqlServer.Smo
• Microsoft.SqlServer.SmoExtend
• Microsoft.SqlServer.ConnectionInfo
• Microsoft.SqlServer.Management.Sdk.Sfc

These assemblies are build in version 2.0.50727 and I have a test project in .NET 4.0. So based on this information I have added an app.config file into the project with the following lines:

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <startup useLegacyV2RuntimeActivationPolicy="true">
    <supportedRuntime version="v4.0"/>
  </startup>
</configuration>

When I'm going to run this I receive all the time the following message:

Mixed mode assembly is built against version 'v2.0.50727' of the runtime and cannot be loaded in the 4.0 runtime without additional configuration information.

Is this a bug in a Visual Studio 2012 RC Test Project that it ignore's the app.config file or am I doing something completely wrong?

For additional information I have included also my test code:

    var connectionString = new SqlConnectionStringBuilder()
    {
        DataSource = @"(local)",
        IntegratedSecurity = true
    }.ConnectionString;

    var sql = "alter database [Test] set single_user with rollback immediate go ";
    sql += "drop database [Test] go ";
    sql += "create database [Test] go ";
    sql += Properties.Resources.Test;

    var connection = new SqlConnection(connectionString);
    var server = new Server(new ServerConnection(connection));

    server.ConnectionContext.ExecuteNonQuery(sql);