Doh! We never actually escaped variables, or tested in parser.

Need to add a 'quote' special form, for this and Schema.
When evaluated, return the Name instead of trying to lookup a value.
Question is: how do we know the Context?

FrameSymbol.called_by:57
we evaluate '_' in context of the level 1 LexPipe.
That PIpe should know we are in a lazy (quoted) regime.

    return new FrameName(this.data, context.meta);

Gives (differnet) error:

evaluate ... grouping ... returns closure with underbar {_} => https://jsr.io/@std/testing/1.0.9/_test_suite.ts:393:15
error: TypeError: performer.perform is not a function
    return performer.perform(actions);

Actually: what do we do with non-symbols? Shouldn't we do that with quote symbols? Fallback to apply?