message: Make needsParens assumeExpressionContext parameter optional.
diff: @@ -40,7 +40,7 @@ interface FastPathType {
  hasParens(): any;
  getPrevToken(node: any): any;
  getNextToken(node: any): any;
  - needsParens(assumeExpressionContext: any): any;
  + needsParens(assumeExpressionContext?: boolean): any;
  canBeFirstInStatement(): any;
  firstInStatement(): any;
  }
  