Silently swallowed when used within publish function

Nobody has claimed this yet.

Given a publish function:

``` js
Meteor.publish('hello', function(name) {
new SimpleSchema({name: {type: String, min: 5}}).validate({name})
return Names.find({name});
});
```

Subscribing with:

``` js
Meteor.subscribe('hello', 'x');
```

I would expect to see an error on the server console just like I do with `check` but I see nothing. The function simply does not publish anything and that's it, making it hard to debug publications.

_PS: I am going to cross-post this on the simple schema tracker because I honestly don't know where this belongs._

Start by reproducing the Meteor.publish example with SimpleSchema validation and an invalid subscription argument. Trace how validation failures are handled during publication, using the server console output and publication behavior as the acceptance check. The issue names no repository files or tests, so locating the relevant entry point is part of the investigation.

Written by the indexing model from the issue text.