Optimize method lookup by static compilation of method names to numbers.

[Bystroushaak]

Object is recompiled each time some of its slots, or parent slots changes.

Requires parent compilation version number variable in each object and also some kind of lookup dictionary* which will check when whether the compilation number is same.

*Or maybe don't store pointers to objects, but pair (parent, version).

• https://richardartoul.github.io/jekyll/update/2015/04/26/hidden-classes.html
• https://morepypy.blogspot.com/2010/11/efficiently-implementing-python-objects.html

[Bystroushaak]

It didn't prove to be working correctly, as most of the objects parent tree version changes too often, so it triggered recompilation / cache invalidation every time. Also, fallback from the optimized recompiled code back is hard, as it needs to push back string literals for message names, which may be impossible.