next: Folding of Single-Field Structs

## Order is irrelevant

CUE’s basic operations are defined in a way that the order in which you combine two configurations is irrelevant to the outcome.

This is crucial property of CUE that makes it easy for humans and machines to reason over values and makes advanced tooling and automation possible.

order.cue

a: {x: 1, y: int}
a: {x: int, y: 2}

b: {x: int, y: 2}
b: {x: 1, y: int}

\$ cue eval -i order.cue

a: {
x: 1
y: 2
}
b: {
x: 1
y: 2
}