Include source line in assertion error

[jkrems]

assert.expect(2 > 3);

I want assertive to include the source line in the error, e.g. by capturing the stack trace in a smarter way.

[EndangeredMassa]

How much effort like this is worth it before either just using power-assert or rewriting assertive to be an arg-shifted version of power-assert?

[ghost]

power-assert looks pretty nice - @EndangeredMassa have you guys been using it?

[EndangeredMassa]

Not me, but I've heard people like it.