* numeric.c (fix_aref): avoid a possible undefined behavior.
  1L << 63 on 64-bit platform is undefined, at least, according to
  ISO/IEC 9899 (C99) 6.5.7.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43222 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* 2013-10-10

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43223 b2dd03c8-39d4-4d8f-98ff-823fe69b080e