issue 346
-- a.cue --
payments: [{
	price: 110
	currency: "EUR"
}, {
	price: 204
	currency: "EUR"
}, {
	price:    35
	currency: "GBP"
}]

payments: [... {
	currency: *"EUR" | string
}]
-- out/trim --
== a.cue
payments: [{
	price: 110
}, {
	price: 204
}, {
	price:    35
	currency: "GBP"
}]

payments: [... {
	currency: *"EUR" | string
}]
