* Rewrite Document-related classes as a polymorphic value type
* Pass ObjectValue without rvalue references
* Rename HasLocalMutations
* Port C++ users to new Documents
* Port FSTDocumentTests to C++
* Port FSTDocumentSetTests to C++
* Migrate DocumentMap and DocumentSet to C++ Document
* Migrate test helpers
* Delete FSTDocumentSetTests
* Delete FSTDocumentTests
* Mechanical changes to use C++ Document
* Updates to the project file
* Nontrivial test updates
* Remove FSTTestDeletedDoc
* Remove FSTTestUnknownDoc
* Remove FSTDocument
* Convert usage of FSTDocument to C++ Document
* Fix Serializer usage of Documents
This is safer and better matches our design (and the other platforms), since
classes like api::DocumentReference will have references to api::Firsetore but
the lifetime is controlled by the developer, not us.
use namespace aliases instead.
This makes the Objective-C code much more like what it's going to end up
being like when translated to C++: headers will include classes declared
in a namespace relative to firebase::firestore so everything else will
be named relative to firebase::firestore.
Meanwhile the using statements in the headers were causing us to miss
adding using statements in source files which was moving us away from
where we wanted to be.
* Drop acknowledged mutations in schema migration (#1818)
Drop acknowledged mutations in schema migration as part of removing held write acks.
Port of firebase/firebase-js-sdk#1149
* Change removeMutationBatch to remove a single batch (#1955)
* Update Firestore Generated Protos
* Adding UnknownDocument and hasCommittedMutations (#1971)
* Removing held write batch handling from LocalStore (#1997)
* View changes for held write acks (#2004)
* Held Write Acks Unit Test Fixes (#2008)
* Held Write Ack Removal Spec Tests (#2018)
* Fix integration test
Gil