Also, add a GoogleTest debug `PrintTo` routine for `LogEntry`, so that unexpected calls to `ScopedMockLog::Send` print metadata legibly.
PiperOrigin-RevId: 790735226
Change-Id: If21821812a9b7ecfaefef9ea5085f161f9331cf4
This stores the operands to LOG (and CHECK) as separate fields in a serialized protobuf. The protobuf format is not yet published.
PiperOrigin-RevId: 489275799
Change-Id: I86d83671a6b1feb2bddd5bee51552907897ca8eb