daemon: eval-mediated worker names do not resolve

[rekmarks]

Describe the bug

When pet-naming a worker that is returned from an eval formula, you cannot later use that name to specify a --worker to the daemon. Doing so will result in the following error: Cannot deliver "evaluate" to target; typeof target is "undefined".

Steps to reproduce

Using the INFO feature of #1916:

> endo make counter.js --name counter
  Object [Alleged: Counter] {}
> endo eval 'E(INFO).lookup("counter")' INFO --name inspector
  Object [Alleged: Inspector (make-bundle ... )]
> endo eval 'E(inspector).lookup("worker")' inspector --name cworker
  Object [Alleged: EndoWorker] {}
> endo eval 'E(counter).incr()' counter --worker cworker
  CapTP cli exception: (RemoteTypeError(error:captp:Endo#20001)#1)
  RemoteTypeError(error:captp:Endo#20001)#1: Cannot deliver "evaluate" to target; typeof target is "undefined"

Expected behavior

As above except:

...
> endo eval 'E(counter).incr()' counter --worker cworker
  1

[kriskowal]

Design: we should go back to keeping an internal a WeakMap from worker handles to their corresponding bootstrap objects and stop using the internal facet trick. The WeakMap will work for workers even if laundered through an eval formula.

[rekmarks]

I believe this is another instance of the same problem (originally reported in #2074):

Steps to reproduce

> endo make counter.js --name counter

> endo eval 'E(counter).incr()' counter
1

> endo eval 'E(counter).incr()' counter
2

> endo eval 'foo' foo:INFO.counter.worker -n main-worker
Object [Alleged: EndoWorker] {}

// This should cancel the worker, but actually cancels a lookup formula instead.
// The bug is that this should, but does not, propagate to the worker (and then the counter).
> endo cancel main-worker

> endo eval 'E(counter).incr()' counter
3

Expected Behavior

> endo make counter.js --name counter

> endo eval 'E(counter).incr()' counter
1

> endo eval 'E(counter).incr()' counter
2

> endo eval 'foo' foo:INFO.counter.worker -n main-worker
Object [Alleged: EndoWorker] {}

> endo cancel main-worker

> endo eval 'E(counter).incr()' counter
1

[rekmarks]

We believed that this was fixed by #2092. Rather than fixing the bug, however, that PR concealed it by always creating a new incarnation of eval formula workers, even if they already existed. It's back to the drawing board with this one.