Test run on Safari 9

[dfahlander]

A test run on Safari 9 gives:

An example of Error.stack before throw: 
testErrorStack@https://rawgit.com/nbdd0121/es-error-stack/master/test.html:16:26
global code@https://rawgit.com/nbdd0121/es-error-stack/master/test.html:46:15
An example of Error.stack: 
testErrorStack@https://rawgit.com/nbdd0121/es-error-stack/master/test.html:16:26
global code@https://rawgit.com/nbdd0121/es-error-stack/master/test.html:46:15
On this broweser, Error.stack is created on new
value defined
writable defined and is true
configurable is true
An example of Error.stack involving natives: 
https://rawgit.com/nbdd0121/es-error-stack/master/test.html:50:28
forEach@[native code]
testNative@https://rawgit.com/nbdd0121/es-error-stack/master/test.html:49:20
global code@https://rawgit.com/nbdd0121/es-error-stack/master/test.html:56:11
An example of Error.stack involving eval: 
eval code
eval@[native code]
testEval@https://rawgit.com/nbdd0121/es-error-stack/master/test.html:59:13
global code@https://rawgit.com/nbdd0121/es-error-stack/master/test.html:64:9
An example of Error.stack involving new Function: 
anonymous
testNewFunc@https://rawgit.com/nbdd0121/es-error-stack/master/test.html:68:10
global code@https://rawgit.com/nbdd0121/es-error-stack/master/test.html:73:12
Cannot evaluate script
eval@[native code]
runComment@https://rawgit.com/nbdd0121/es-error-stack/master/test.html:100:13
global code@https://rawgit.com/nbdd0121/es-error-stack/master/test.html:105:11
An example of Error.stack when using Promise: 
wrapper@https://rawgit.com/nbdd0121/es-error-stack/master/test.html:89:28
promiseReactionJob@[native code]
An example of Error.stack when using setTimeout: 
wrapper@https://rawgit.com/nbdd0121/es-error-stack/master/test.html:78:28