message: null -> undefined
diff: @@ -15,7 +15,7 @@ export class BackgroundWorkStatusBarObserver extends BaseStatusBarItemObserver {
  if (asProjectEvent.message.Status === DiagnosticStatus.Processing) {
  let projectFile = asProjectEvent.message.ProjectFilePath.replace(/^.*[\\\/]/, '');
  - this.SetAndShowStatusBar(`$(sync~spin) Analyzing ${projectFile}`, 'o.showOutput', null, `Analyzing ${projectFile}`);
  + this.SetAndShowStatusBar(`$(sync~spin) Analyzing ${projectFile}`, 'o.showOutput', undefined, `Analyzing ${projectFile}`);
  }
  else {
  this.ResetAndHideStatusBar();
  @@ -23,4 +23,3 @@ export class BackgroundWorkStatusBarObserver extends BaseStatusBarItemObserver {
  }
  }
  }
  -
  