function parseLogicalOr(state) {
    var node = parseLogicalXor(state);

    while (state.token === 'or') {
      // eslint-disable-line no-unmodified-loop-condition
      getTokenSkipNewline(state);
      node = new OperatorNode('or', 'or', [node, parseLogicalXor(state)]);
    }

    return node;
  }
logical or, 'x or y'
@return {Node} node
@private