Change Merkle verify asserts to Result Errs #251
Merged
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Replace assertion-based error handling in our Merkle verification code with Result-based error handling.
The intent is for
VerificationError::InvalidProof
to be used when we attempt to verify an alleged proof that is not actually a true proof, and to use other error types for issues not directly related to the validity of the proof.Split off from #243 for clarity of purpose so that reviewers can more quickly give feedback on whether this is a good approach to handling verification errors.