Function nextTokenAnd

test/fixtures/snapshot/typescript.js:31998–32001

(func)

            return currentToken = scanner.scan();
        }
        function nextTokenAnd(func) {
            nextToken();
            return func();
        }
        function nextToken() {
            // if the keyword had an escape
            if (ts.isKeyword(currentToken) && (scanner.hasUnicodeEscape() || scanner.hasExtendedUnicodeEscape())) {