I recently added allowDeclaredFields so that I could utilize the

declare modifier for variables. However, with Babel, this isn't what

we want.
Normally, any variable defined in a class but not set to a value will be

simply left out of the prototype (an implicit undefined), but with

this setting enabled, only variables with declare will be left out

(everything else will be set to an explicit undefined).
That breaks checks like this.prototype.hasOwnProperty(...) that should

have been false if a variable was not explicitly set.
We can instead avoid declare and just define it, getting the same

results. This only really matters to us today for static variables

promoted to prototype attributes through Spina.

Rebuilt all static media and verified the breakages in unit tests have

been fixed.