code: function formatHint(hints) {
          $hintContent.empty();
          $hintContent.addClass("brackets-hints");
  
          function appendSeparators(separators) {
              $hintContent.append(separators);
          }
  
          function appendParameter(param, documentation, index) {
              if (hints.currentIndex === index) {
                  $hintContent.append($("<span>")
                      .append(_.escape(param))
                      .addClass("current-parameter"));
              } else {
                  $hintContent.append($("<span>")
                      .append(_.escape(param))
                      .addClass("parameter"));
              }
          }
  
          if (hints.parameters.length > 0) {
              _formatParameterHint(hints.parameters, appendSeparators, appendParameter);
          } else {
              $hintContent.append(_.escape(Strings.NO_ARGUMENTS));
          }
      }
docs: Bold the parameter at the caret.
  
  @param {{inFunctionCall: boolean, functionCallPos: {line: number, ch: number}}} functionInfo -
  tells if the caret is in a function call and the position
  of the function call.