() => {
   var input = "+angular2 is amazing";
   expect(StringWrapper.stripLeft(input, "*")).toEqual(input);
 });

function _randomChar(): string {
  return StringWrapper.fromCharCode(97 + Math.floor(Math.random() * 25));
}

 advance() {
   this.peek = ++this.index >= this.length ? $EOF : StringWrapper.charCodeAt(this.input, this.index);
 }

 expectCharacter(code: int) {
   if (this.optionalCharacter(code)) return;
   this.error(`Missing expected ${StringWrapper.fromCharCode(code)}`);
 }

function compareIgnoreLang(a: string, b: string): number {
  return StringWrapper.compare(stripLang(a), stripLang(b));
}

 _insertPolyfillDirectivesInCssText(cssText) {
   return StringWrapper.replaceAllMapped(cssText, _cssContentNextSelectorRe, function(m) {
     return m[1] + '{';
   });
 }

 _colonHostPartReplacer(host, part, suffix) {
   return host + StringWrapper.replace(part, _polyfillHost, '') + suffix;
 }

 _normalizeAttributeName(attrName: string): string {
   return StringWrapper.startsWith(attrName, 'data-') ? StringWrapper.substring(attrName, 5) :
                                                        attrName;
 }

 ListWrapper.forEach(entries, function(entry) {
   var message = Json.parse(entry['message'])['message'];
   if (StringWrapper.equals(message['method'], 'Timeline.eventRecorded')) {
     ListWrapper.push(records, message['params']['record']);
   }
 });

 supports(capabilities: {[key: string]: any}): boolean {
   return StringWrapper.equals(capabilities['browserName'].toLowerCase(), 'safari');
 }