merge revision(s) 57660: [Backport #13234]
regparse.c: initialize return values * regparse.c (parse_char_class): initialize return values before depth limit check. returned values will be freed in callers regardless the error. [ruby-core:79624] [Bug #13234]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_4@57909 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) 57660: [Backport #13234]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_4@57909 b2dd03c8-39d4-4d8f-98ff-823fe69b080e