Inline arrow function support for expect.js

[Hugodby]

Hi,
I trying to migrate off expect.js. It works fine for most of the tests. However, when the expect call is inline it isn't converted:

# WRONG: this is ignored

return model.generate(TITLE)
  .then((id) => expect(id).to.be.ok());

# This should be converted to

return model.generate(TITLE)
  .then((id) => expect(id).toBeTruthy());

However, when I use { } to declare the function it works:

# OK: This

return model.generate(TITLE)
  .then((id) => {
    expect(id).to.be.ok()
  });

# is successfuly converted to

return model.generate(TITLE)
  .then((id) => {
    expect(id).toBeTruthy()
  });

[skovhus]

@Hugodby thanks for reporting this. Let me know if you want to give it a go.