Revert "Manage AST NODEs out of GC"
This reverts commit 620ba74778bfdbdc34ffbb142d49ce84a0ef58e9.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60486 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Revert "Manage AST NODEs out of GC"
This reverts commit 620ba74778bfdbdc34ffbb142d49ce84a0ef58e9.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60486 b2dd03c8-39d4-4d8f-98ff-823fe69b080e