checker, orm: add error for unchecked option multi return types, fix undefined behavior #21106
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Fixes #17874
Fixes #21117
Due to the changes, a fix to the vlib orm module is included.
Will now throw:
Based on #21105 (After resolving it first, the PR should rebased)
Superseeds #20515. The PR is stale for a while, but took good steps towards the solution.