Ruby

range.c: check loading

• range.c (range_loader): check loading values if the data came
  from an initialized range object. [ruby-core:78067] [Bug #12915]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56703 b2dd03c8-39d4-4d8f-98ff-823fe69b080e