rb_proc_t: reduce to 64 bytes from 72 on 64-bit
This allows rb_proc_t to fit inside a single cache line on x86-64
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46886 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
rb_proc_t: reduce to 64 bytes from 72 on 64-bit
This allows rb_proc_t to fit inside a single cache line on x86-64
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46886 b2dd03c8-39d4-4d8f-98ff-823fe69b080e