cjohansen/Sinon.JS — pull request #72 by mantoni (2012-01-08 15:31:05+00:00)
Title: Spys created using 'withArgs' should get initialized

This allows things like

```javascript
assert(spy.withArgs("foo").threw());
```

```javascript
spy.withArgs("foo").yield();
```

```javascript
assert(spy.withArgs("foo").calledBefore(spy.withArgs("bar")));
```