anchor.diff:    /// Represents a non-deterministic stream of values called a choice stream.
     type Stream<'x> = Stream.Stream<'x>
   
  +  //# Computation expression builders
  +
     /// Default expression builder for jobs.
     val job: JobBuilder
   
  
positive.code:   /// `Hopac.Extensions.Async.Global.onMain ()`.
  #endif
    val onMain: Extensions.Async.OnWithSchedulerBuilder
  
    /// Starts running the given job on the global scheduler and then blocks the
    /// current thread waiting for the job to either return successfully or fail.
  
negative.code:   /// Use object as job.  This function is a NOP and is provided as a kind of
    /// syntactic alternative to using a type ascription or an `upcast`.
    val inline asJob: Job<'x> -> Job<'x>
  