convert global addToBack calls to this.alertDescriptionUtterance where possible, https://github.com/phetsims/utterance-queue/issues/13
convert global addToBack calls to this.alertDescriptionUtterance where possible, https://github.com/phetsims/utterance-queue/issues/13

phetsims/scenery-phet,phetsims/scenery-phet,phetsims/scenery-phet