[realppl 5] map,string,timestamp and mirroring semantics

Author: wu-hui

FirebaseFirestoreInternal.podspec

@@ -129,7 +129,8 @@ Google Cloud Firestore is a NoSQL document database built for automatic scaling,
       '"${PODS_TARGET_SRCROOT}" ' +
       '"${PODS_TARGET_SRCROOT}/Firestore/Source/Public" ' +
       '"${PODS_ROOT}/nanopb" ' +
-      '"${PODS_TARGET_SRCROOT}/Firestore/Protos/nanopb"'
+      '"${PODS_TARGET_SRCROOT}/Firestore/Protos/nanopb" ' +
+      '"$(PODS_ROOT)/gRPC-C++/third_party/re2"'
   }
 
   s.compiler_flags = '$(inherited) -Wreorder -Werror=reorder -Wno-comma'

Firestore/Example/Firestore.xcodeproj/project.pbxproj

@@ -28,8 +28,7 @@ namespace api {
 RealtimePipeline::RealtimePipeline(
     std::vector<std::shared_ptr<EvaluableStage>> stages,
     remote::Serializer serializer)
-    : stages_(std::move(stages)),
-      serializer_(serializer) {
+    : stages_(std::move(stages)), serializer_(serializer) {
 }
 
 RealtimePipeline RealtimePipeline::AddingStage(