Added missing tests for correct error message with a/an symbol, which already passed.
Moved moethods from ResultOfBeWordForAnyRef up to ResultOfBeWordForAny, adding <:< AnyRef.
Moved ResultOfBeWordForCollectedAnyRef methods to ResultOfBeWordForCollectedAny, adding <:< AnyRefs, and got
rid of ResultOfBeWordForCollectedAnyRef.