I think we broke the name param to action() when fired from workers

[rjrjr]

trafficstars

I'm giving my app logging of every WorkflowAction fired, via RenderContextInterceptor.onActionSent. I find that the toString() of an action fired by a Worker is prefixed sendAndAwaitApplication(com.squareup.workflow1.EmitWorkerOutputAction(worker=, and completely omits any name parameter provided to StatefulWorkflow.action() et al. Somewhere along the way with all this wrapping we've clobbered an important toString(), or failed to call it.