Relands #152295.
Checking for the overloads did not account for them being out of order.
For example, [the failed
output](https://github.com/llvm/llvm-project/pull/152295#issuecomment-3177563247)
contained the overloads, but out of order. The last commit here fixes
that by using `-DAG`.
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Co-authored-by: Jonas Devlieghere <jonas@devlieghere.com>