Sim: startedSimConstructorEmitter and endedSimConstructionEmitter

[pixelzoom]

I ran into this while looking for something that fires after the Sim is up an running.

In Sim.js:

// @public (phet-io) Emitter for PhET-iO data stream to describe the startup sequence
this.startedSimConstructorEmitter = new Emitter();

// @public (phet-io) Emitter for PhET-iO data stream to describe the startup sequence
this.endedSimConstructionEmitter = new Emitter();

Problems here....

(1) One is named "Constructor", the other "Construction". Tricky.

(2) The documentation tells us nothing about when these fire. And it's not at all clear from reading the code: startedSimConstructorEmitter isn't at the very beginning of the constructor. endedSimConstructionEmitter is in async code that appears in start.

(3) Are these for use only by PhET-iO?

[zepumph]

statedSimConstructorEmitter doesn't exist anymore. endedSimConstructionEmitter can be used by anyone like LegendsOfLearnerSupport does. Doc has been improved. Closing