code: private static void makeDeclarationVar(Var coalescedName) {
      if (coalescedName.isLet() || coalescedName.isConst()) {
        Node declNode =
            NodeUtil.getEnclosingNode(coalescedName.getParentNode(), NodeUtil::isNameDeclaration);
        declNode.setToken(Token.VAR);
      }
    }
docs: Because the code has already been normalized by the time this pass runs, we can safely
  redeclare any let and const coalesced variables as vars