Support metadata for the test spec function

[kevinresol]

I am trying to use buddy with tink_await, like so:

@:await
class Riders extends BuddySuite {
    @:await public function new() {
        describe('Should work', @:await function() {
            beforeEach(@:await function(done) {
                @:await doSomethingAsync();
                done();
            });

            it('with tink_await', @:await function(done) {
                @:await doSomethingAsync();
                done();
            });
        });
    }
}

In short, I need to be able to add a meta to the test spec function, as in @:await function(done) ...

This is just a PoC so I only modified the macros for describe, beforeEach and it.

P.S. It is a bit repetitive to type buddy.BuddySuite.TestFunc.Async and buddy.BuddySuite.TestFunc.Sync all over the place. Maybe a var sync = macro buddy.BuddySuite.TestFunc.Sync may help. (use as macro beforeEach($sync(someFunc)))

[ciscoheat]

@kevinresol I've made the changes and included the macro (thanks for the tip!), and it seems to work. Here are the tests, if that's all you think is needed, let me know and I'll release a new haxelib version:

https://github.com/ciscoheat/buddy/blob/master/src/buddy/tests/AllTests.hx#L928-L949

[kevinresol]

Yes, that's what I need at this very moment. But I think it is better to support other places as well (e.g. afterEach, etc), to be complete. Thanks for the quick response!

[ciscoheat]

Now it's available on haxelib. And yes it would be nice to have for the whole API. If you have some time for that, please make a PR!