refactor subclass list additions
reorder this to avoid dat segfault
there's something wrong with this free but I can't figure out what
instrument the cost of invalidating method cache trees
add a second, global sequence to avoid having to traverse the entire class hierarchy to expire the method cache from Object
expire globally for Kernel as well
make sure we track module inclusion properly
switch to using st.c rather than my incorrect, shitty hash table
make sure that we correctly repair pointers back to the subclasses list
make sure that we assign everything before we free the entry