vm_core.h: fix symbols leak
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49517 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
vm_core.h: fix symbols leak
list to get rid of inadvertent creation by variable keyword
arguments. [ruby-core:68031] [Bug #10831]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49517 b2dd03c8-39d4-4d8f-98ff-823fe69b080e