title: How to include a file in sonar lint for analysis if it was excluded?
body: <p>I clicked on "exclude" within the sonarlint menuin eclise for a file. Now i can't figure out how to enable it? </p>
  
  <p>the sonarlint analyze option is greyed out for the file now. I tried looking for excluded files at Preferences > SonarLink > File Exclusions, but the file wasn't in the list</p>
  
  <p><a href="https://i.stack.imgur.com/NwmH0.png" rel="noreferrer"><img src="https://i.stack.imgur.com/NwmH0.png" alt="enter image description here"></a></p>
  
  <p>How to remove the file from sonar lint exclusion?</p>
  
  <p>Eclipse Version: Mars.2 Release (4.5.2)</p>
  
  <p>SonarLint version: SonarLint for Eclipse 3.6.0.201806071228 </p>