Remove warning (#1999)

wilhuff · web-flow · commit 486aa3f4f8b1 · 2018-10-24T15:58:14.000-07:00
diff --git a/Firestore/Source/Local/FSTMemoryPersistence.mm b/Firestore/Source/Local/FSTMemoryPersistence.mm
@@ -246,7 +246,7 @@ - (int)removeOrphanedDocumentsThroughSequenceNumber:(ListenSequenceNumber)upperB
   for (const auto &key : removed) {
     _sequenceNumbers.erase(key);
   }
-  return removed.size();
+  return static_cast<int>(removed.size());
 }
 
 - (void)addReference:(const DocumentKey &)key {

Original file line number	Diff line number	Diff line change
`@@ -246,7 +246,7 @@ - (int)removeOrphanedDocumentsThroughSequenceNumber:(ListenSequenceNumber)upperB`
`246`	`246`	`for (const auto &key : removed) {`
`247`	`247`	`_sequenceNumbers.erase(key);`
`248`	`248`	`}`
`249`		`- return removed.size();`
	`249`	`+ return static_cast<int>(removed.size());`
`250`	`250`	`}`
`251`	`251`
`252`	`252`	`- (void)addReference:(const DocumentKey &)key {`