code: function toAstArray(ary) {
          var output = [
              'array',
              []
          ],
          i, item;
  
          for (i = 0; (item = ary[i]); i++) {
              output[1].push([
                  'string',
                  item
              ]);
          }
  
          return output;
      }
docs: Converts a regular JS array of strings to an AST node that
  represents that array.
  @param {Array} ary
  @param {Node} an AST node that represents an array of strings.