private void handleNegation(InsertionContext context, Document document, PsiCallExpression methodCall) {
    if (context.getCompletionChar() == '!' && myNegatable) {
      context.setAddCompletionChar(false);
      FeatureUsageTracker.getInstance().triggerFeatureUsed(CodeCompletionFeatures.EXCLAMATION_FINISH);
      document.insertString(methodCall.getTextRange().getStartOffset(), "!");
    }
  }
private void handleNegation(InsertionContext context, Document document, PsiCallExpression methodCall)