* complex.c: undef-ed shome methods. [ruby-core:24110] * complex.c (Numeric#arg): NaN for NaN. [ruby-core:24116]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_1@24053 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merges r23946 from trunk into ruby_1_9_1.¶
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_1@24053 b2dd03c8-39d4-4d8f-98ff-823fe69b080e