Ruby

compile.c: raise on invalid input

• compile.c (ibf_load_object_unsupported, ibf_load_object_class):
  should raise an exception. rejection of invalid input is not a
  bug.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62622 b2dd03c8-39d4-4d8f-98ff-823fe69b080e