Commits
Gil authored and GitHub committed dd7fbf885e8
Migrate FSTMutationTests to C++ (#3571) * Tidy up mutation_test.cc ahead of filling it out * Move FSTUserDataConverter tests out of FSTMutationTests * Add operator<< for Document The compiler won't apply the one for MaybeDocument. * Port FSTMutationTests to C++ * Delete FSTMutationTests