title: Custom language auto complete
body: <p>I have created a new language within VS Code and am trying to build auto complete options (similar to Javascript). I have seen that the auto complete (intellisense) suggestions are taken from a file es6.d.ts which I have copied and modified to suit my language. </p>
  
  <p>The language is almost the same as Javascript (as far as syntax goes), I just need to use this updated ts file with my language.</p>
  
  <p>How would I go about setting up auto complete to work with my custom language and ts file? </p>
  
  <p>Thanks! </p>