function getInlineEditors(hostEditor) {
        var inlineEditors = [];

        if (hostEditor) {
            hostEditor.getInlineWidgets().forEach(function (widget) {
                if (widget instanceof InlineTextEditor && widget.editor) {
                    inlineEditors.push(widget.editor);
                }
            });
        }

        return inlineEditors;
    }
@private
Given a host editor, return a list of all Editors in all its open inline widgets. (Ignoring
any other inline widgets that might be open but don't contain Editors).
@param {!Editor} hostEditor
@return {Array.<Editor>}