title: Am I able to refresh diagnostics on settings change in Roslyn
body: <p>Let's say that I've created a diagnostic analyzer that shows warning if an <code>IfStatementSyntax</code> does not have opening and closing braces. Also, my Visual Studio extension has setting allowing to the user to disable such kind of diagnostics. What I am trying to achieve is to invalidate the current diagnostics when this setting has been change because they might be inadequate. Am I able to do this somehow?</p>