8042727: nsk/jdb/unwatch/unwatch001 crash in InstanceKlass::methods_do(void (*)(Method*)) Summary: Only walk methods in instanceklass if the class is loaded Reviewed-by: dholmes, fparain

^build/
^dist/
^testoutput/
/nbproject/private/
^make/netbeans/.*/build/
^make/netbeans/.*/dist/
^.hgtip
.DS_Store