revert r31474. we cann't call xmalloc under FGLOCK.
Thansk, nagachika-san.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@31479 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
revert r31474. we cann't call xmalloc under FGLOCK.
Thansk, nagachika-san.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@31479 b2dd03c8-39d4-4d8f-98ff-823fe69b080e