"
The mutation_fragments hashing code sitting in row-level repair
upsets clang and makes it spend 20 minutes compiling itself. This
set speeds this up greatly by moving the hashing code into the
mutation_fragment.cc and turning it into the appending_hash<>
specialisation. A simple sanity checking test makes sure this
doesn't change resulting hash values.
tests: unit.hashers_test(dev, release) // hash values matched, phew
dtest.repair_additional_test.repair_large_partition_existing_rows_test(release)
"
* 'br-row-level-comp-speedup-2.2' of https://github.com/xemul/scylla:
mutation_fragment: Specialize appending_hash for it
tests: Add sanity check for hashing mutation_fragments
bae67dcce6