Sema: better `switch_block_err_union` result location if operand has wrong type

also fixes related test case and makes it run everywhere, not just on x86_64-linux!
dbfeade221Justus Klausecker committed on 1/11/2026, 11:37:18 AM· committed by Matthew Luggparent2e99c30
2 files changedLine totals unavailable