Ruby

• string.c (rb_str_hash_m): st_index_t is not guaranteed as the same
  size with int, and of course also not guaranteed the value can be
  Fixnum.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56320 b2dd03c8-39d4-4d8f-98ff-823fe69b080e