title: VsCode Extension: Rename Symbols
body: <p>Is there any why to trigger Rename Variable from a Extension? </p>
  
  <p>I found an <a href="https://github.com/Jason-Rev/vscode-spell-checker/blob/master/client/src/commands.ts#L12" rel="nofollow noreferrer">example</a> how to rename a certain word in a file, but the reference variables keep the same as before.</p>