Ruby

merge revision(s) 57688,57689: [Backport #13242]

 rational.c: infinity in power * rational.c (nurat_expt): return Infinity due to overflow. [ruby-core:79686] [Bug #13242]: rational.c: infinity in power * rational.c (nurat_expt): return 0 due to overflow. [ruby-core:79686] [Bug #13242]: 

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_2@58117 b2dd03c8-39d4-4d8f-98ff-823fe69b080e