Almost every copy-paste test file has expected errors
(usually, unresolved references), so it looks noisy to dump them all.
Also, this will help to share expected results between K1 and K2,
because they often differ only in exact wording of error messages.
KTIJ-28714
(cherry picked from commit 4d2e181ee3d4781f3064f046f4f6ac3005d1e9fc)
GitOrigin-RevId: 69501d6a2916dc8959707a4c7ada3a3322f8209e
235f3a2012