Added XMLDocument test for betterInstanceOf()
Added XMLDocument test for betterInstanceOf()

thanks to n1k0

davidwhthomas/casperjs,joshuafcole/casperjs,vladikoff/casperjs,JZL/casperjs,dj31416/casperjs,artillery/casperjs,muntasir2000/casperjs,RobertoMalatesta/casperjs,vladikoff/casperjs,cryptoquick/casperjs,dj31416/casperjs,hlr1983/casperjs,artillery/casperjs,hlr1983/casperjs,pbrazdil/casperjs,singhdev/casperjs,ravindrasingh22/casperjs,sircelsiussexy/casperjs,singhdev/casperjs,muntasir2000/casperjs,casperjs/casperjs,jefleponot/casperjs,davidwhthomas/casperjs,vladikoff/casperjs,jefleponot/casperjs,jjyycchh/casperjs,davidwhthomas/casperjs,Andrey-Pavlov/casperjs,dj31416/casperjs,hexid/casperjs,hudl/casperjs,hudl/casperjs,pbrazdil/casperjs,hlr1983/casperjs,Andrey-Pavlov/casperjs,jamesanthonyferguson/casperjs,JZL/casperjs,linkedin/casperjs,casperjs/casperjs,alexbiehl/casperjs,PeterWangPo/casperjs,cryptoquick/casperjs,vietch2612/casperjs,hudl/casperjs,mcwonka/casperjs,davidwhthomas/casperjs,Andrey-Pavlov/casperjs,kyroskoh/casperjs,n1k0/casperjs,muntasir2000/casperjs,alexbiehl/casperjs,istr/casperjs,davidwhthomas/casperjs,artillery/casperjs,mcwonka/casperjs,artillery/casperjs,vietch2612/casperjs,muntasir2000/casperjs,ravindrasingh22/casperjs,vladikoff/casperjs,jjyycchh/casperjs,soundyogi/casperjs,joshuafcole/casperjs,sircelsiussexy/casperjs,RobertoMalatesta/casperjs,istr/casperjs,alexbiehl/casperjs,soundyogi/casperjs,mickaelandrieu/casperjs,RobertoMalatesta/casperjs,flyHe/casperjs,hlr1983/casperjs,jjyycchh/casperjs,hexid/casperjs,vietch2612/casperjs,ravindrasingh22/casperjs,joshuafcole/casperjs,joshuafcole/casperjs,istr/casperjs,HienLeThi/Casperjs_Demo,Andrey-Pavlov/casperjs,alexbiehl/casperjs,mickaelandrieu/casperjs,PeterWangPo/casperjs,jjyycchh/casperjs,HienLeThi/Casperjs_Demo,casperjs/casperjs,jefleponot/casperjs,dj31416/casperjs,jamesanthonyferguson/casperjs,ravindrasingh22/casperjs,JZL/casperjs,mcwonka/casperjs,kyroskoh/casperjs,jefleponot/casperjs,PeterWangPo/casperjs,ravindrasingh22/casperjs,hudl/casperjs,linkedin/casperjs,RobertoMalatesta/casperjs,HienLeThi/Casperjs_Demo,vietch2612/casperjs,jamesanthonyferguson/casperjs,hexid/casperjs,linkedin/casperjs,cryptoquick/casperjs,Andrey-Pavlov/casperjs,alexbiehl/casperjs,mickaelandrieu/casperjs,soundyogi/casperjs,PeterWangPo/casperjs,casperjs/casperjs,kyroskoh/casperjs,singhdev/casperjs,n1k0/casperjs,muntasir2000/casperjs,vietch2612/casperjs,mcwonka/casperjs,pbrazdil/casperjs,istr/casperjs,mickaelandrieu/casperjs,JZL/casperjs,pbrazdil/casperjs,vladikoff/casperjs,jamesanthonyferguson/casperjs,hlr1983/casperjs,flyHe/casperjs,jjyycchh/casperjs,dj31416/casperjs,PeterWangPo/casperjs,pbrazdil/casperjs,hexid/casperjs,cryptoquick/casperjs,singhdev/casperjs,vietch2612/casperjs,casperjs/casperjs,joshuafcole/casperjs,kyroskoh/casperjs,sircelsiussexy/casperjs,flyHe/casperjs,mickaelandrieu/casperjs,alexbiehl/casperjs,cryptoquick/casperjs,jefleponot/casperjs,n1k0/casperjs,dj31416/casperjs,davidwhthomas/casperjs,linkedin/casperjs,linkedin/casperjs,hexid/casperjs,HienLeThi/Casperjs_Demo,JZL/casperjs,mcwonka/casperjs,muntasir2000/casperjs,flyHe/casperjs,istr/casperjs,kyroskoh/casperjs,singhdev/casperjs,sircelsiussexy/casperjs,PeterWangPo/casperjs,casperjs/casperjs,cryptoquick/casperjs,jefleponot/casperjs,kyroskoh/casperjs,soundyogi/casperjs,flyHe/casperjs,ravindrasingh22/casperjs,jamesanthonyferguson/casperjs,artillery/casperjs,mcwonka/casperjs,Andrey-Pavlov/casperjs,n1k0/casperjs,sircelsiussexy/casperjs,hexid/casperjs,soundyogi/casperjs,mickaelandrieu/casperjs,pbrazdil/casperjs,JZL/casperjs,sircelsiussexy/casperjs,jamesanthonyferguson/casperjs,jjyycchh/casperjs,RobertoMalatesta/casperjs,flyHe/casperjs,HienLeThi/Casperjs_Demo,istr/casperjs,n1k0/casperjs,linkedin/casperjs,soundyogi/casperjs,HienLeThi/Casperjs_Demo,RobertoMalatesta/casperjs,joshuafcole/casperjs,n1k0/casperjs,hudl/casperjs,artillery/casperjs,hlr1983/casperjs