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Does the environment have full property descriptor support? Handles IE 8's broken defineProperty/gOPD.

Example

``js
var hasPropertyDescriptors = require('has-property-descriptors');
var assert = require('assert');

assert.equal(hasPropertyDescriptors(), true); // will be false in IE 6-8, and ES5 engines

// Arrays can not have their length [[Defined]] in some engines
assert.equal(hasPropertyDescriptors.hasArrayLengthDefineBug(), false); // will be true in Firefox 4-22, and node v0.6
`

Tests


Simply clone the repo, npm install, and run npm test`

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