title: Highlight missing safe navigation/safe operator via annotations in Groovy
body: <p>Is there a simple annotation like @TypeChecked that shows some warning, where safe navigation is missing in the code?</p>
  
  <p>E.g. I have a field access like</p>
  
  <pre><code>someObject.myField
  </code></pre>
  
  <p>instead of </p>
  
  <pre><code>someObject?.myField
  </code></pre>
  
  <p>and I want to have the missing safe navigation marked in the first example?</p>