bachinger efff1ee2f1 Add SessionError and use it in service results ...

This change adds `SessionError` and uses it in `SessionResult`
and `LibraryResult` to report errors to callers.

Constructors and factory method that used a simple `errorCode` to
construct error variants of `SessionResult` and `LibraryResult`
have been overloaded with a variant that uses a `SessionError`
instead. While these methods and constructors are supposed to be
deprecated, they aren't yet deprecated until the newly added
alternative is stabilized.

PiperOrigin-RevId: 642254336

2024-06-11 06:53:42 -07:00

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Add SessionError and use it in service results

2024-06-11 06:53:42 -07:00