By Tom Westbrook SYDNEY (Reuters) – Asian stocks limped toward a fourth straight weekly decline on Friday and bonds nursed big losses as investors scrambled to catch up with the U.S. Federal Reserve’s interest rate outlook, while currency markets were on edge at the end of a wild week. Fed members’ projections for aggressive hikes and persistently high rates over the next year or so has unleashed another round of dollar buying that put other assets on the run. World stocks hit two-year lows on Thursday and are down 3% this week. The euro and yen fell to 20-year lows and on Thursday, Japanese a…