re.c: check that MatchData is initialized
Follow r16757 ("* re.c: fix SEGV by Regexp.allocate.names, Match.allocate.names, etc.", 2008-06-02). Don't do null dereference if MatchData#hash or #== is called against an uninitialized instance.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56994 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
re.c: check that MatchData is initialized
Follow r16757 ("* re.c: fix SEGV by Regexp.allocate.names,
Match.allocate.names, etc.", 2008-06-02). Don't do null dereference if
MatchData#hash or #== is called against an uninitialized instance.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56994 b2dd03c8-39d4-4d8f-98ff-823fe69b080e