title: Primary constructors no longer compile in VS2015
body: <p>Until this very day, I could make use of primary constructors, such as:</p>
  
  <pre><code>public class Test(string text)
  {
      private string mText = text;
  }
  </code></pre>
  
  <p>To be able to do this, in the previous Visual Studio CTP, I had to add this to the csproj-file:</p>
  
  <pre><code>&lt;LangVersion&gt;Experimental&lt;/LangVersion&gt;
  </code></pre>
  
  <p>Anyhow, this no longer works in the Visual Studio 2015 Preview (with or without <code>LangVersion</code>). Does anyone have any ideas about what could be going on?</p>