remove const from encoding tables so we can change them at runtime
add --encoding-compatibility mode to prevent exceptions on operations between utf-8 and ascii-8bit strings
import cibuild
st: decrease density and make Packed size equal to Second
st: pool allocation
vm_method.c: use RCLASS_SERIAL macro instead of direct access

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44311 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
class local method cache
a bit better initial position
a bit of sanity
fix whitespace
copy method cache into new singleton class for regular object
fix rb_mcache_resize
do not grow with a lot of method_missing methods
fix last check
proc.c: fix inherited method owner

* proc.c (mnew_from_me): keep iclass as-is, to make inheritance
  chain consistent.  [ruby-core:59358] [Bug #9315]

* proc.c (method_owner): return the original defined_class from
  prepended iclass, instead.

* vm_insnhelper.c (vm_search_super_method): revert r44455, no
  longer defined_class becomes a module.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44458 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

test for prev
test_alias.rb: rename duplicate name

* test/ruby/test_alias.rb (test_alias_wb_miss): rename duplicate
  name to get rid of redefinition.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44373 b2dd03c8-39d4-4d8f-98ff-823fe69b080e