6c16fc8a1a
I am about to update a bunch of uses of AppendErrorWithFormat to not have a full stop at the end, to confirm to https://llvm.org/docs/CodingStandards.html#error-and-warning-messages. Reviewing all those changes is going to be difficult so I am updating the tests first and then we can land the other changes in batches (because the tests will continue to pass as we do that). Note that I have only run the test suite on Linux AArch64, so there are probably more that need to be updated. We will catch those in CI or post-commit.