exec hof eval -i in.cue
cmp stdout expect/stdout

# Issue #1981 (CUE)
# Issue #1786 (CUE)
-- in.cue --
a: 4
a: 5

l: [ 1, 2 ]
l: [ 1, 3 ]

list: [0, 1, 2]
val: list[3]

-- expect/stdout --
a: _|_ // a: conflicting values 5 and 4
l: [1, _|_]
list: [0, 1, 2]
val: _|_ // val: index out of range [3] with length 3
