function filterPath(compiledFilter, fullPath) {
        if (!compiledFilter) {
            return true;
        }

        var re = new RegExp(compiledFilter);
        return !fullPath.match(re);
    }
Returns false if the given path matches any of the exclusion globs in the given filter. Returns true
if the path does not match any of the globs. If filtering many paths at once, use filterFileList()
for much better performance.

@param {?string} compiledFilter  'Compiled' filter object as returned by compile(), or null to no-op
@param {!string} fullPath
@return {boolean}