Confusing error when @Burst is on a test’s superclass

[squarejesse]

I’m seeing this failure building the subclass.

error: @Burst parameter must be a boolean, an enum, or have a burstValues() default value

There’s two problems:

1. The compiler generates an overriding function (origin=FAKE_OVERRIDE) declared by the subtype
2. That generated override maintains @Test but drops all the parameter defaults

This might be exacerbated by supertypes that have type parameters? I’m not completely sure.

We should probably detect Burst functions that are fake overrides, and strip the @Test from them. It’s annoying to have to do this because I would have preferred @Test to be stripped before the fake overrides were generated.