array_reverse on variable length list gives strange results #11148
Description
https://psalm.dev/r/090d9ad9ef
Wrong: array{0?: 'b', 1: 'a'}
Correct: array{0: 'a'|'b', 1?: 'a'} or array{0:'a'}|array{0:'b',1:'a'}
{{ message }}
https://psalm.dev/r/090d9ad9ef
Wrong: array{0?: 'b', 1: 'a'}
Correct: array{0: 'a'|'b', 1?: 'a'} or array{0:'a'}|array{0:'b',1:'a'}