merge revision(s) r45760: [Backport #9796]
* gc.c (gc_after_sweep): suppress unnecessary expanding heap. Tomb heap pages are freed pages here, so expanding heap is not required.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_1@45833 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) r45760: [Backport #9796]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_1@45833 b2dd03c8-39d4-4d8f-98ff-823fe69b080e