Also fully qualify virtual method names
Merge branch 'ssa' of github.com:travitch/dalvik into ssa
Merge branch 'ssa' of github.com:travitch/dalvik into ssa
Remove an unnecessary unsafePerformIO
Remove the other unsafePerformIOs from CHA

The unsafe code was used for caching, but I think it is less important
now than when I first introduced it.  I feel better with no unsafe code
here.