Skip --jit-debug= test on mswin
it fails like https://ci.appveyor.com/project/ruby/ruby/builds/29235837/job/v0apdjj4qx8afars
Skip --jit-debug= test on mswin
it fails like
https://ci.appveyor.com/project/ruby/ruby/builds/29235837/job/v0apdjj4qx8afars