Rename db.Set to db.FileSet

cmd/stindex/main.go

@@ -39,7 +39,7 @@ func main() {
 		log.Fatal(err)
 	}
 
-	fs := db.NewSet(*folder, ldb)
+	fs := db.NewFileSet(*folder, ldb)
 
 	if *device == "" {
 		log.Printf("*** Global index for folder %q", *folder)

cmd/syncthing/main_test.go

@@ -91,7 +91,7 @@ func TestSanityCheck(t *testing.T) {
 
 	// Case 3 - marker missing
 
-	set := db.NewSet("folder", ldb)
+	set := db.NewFileSet("folder", ldb)
 	set.Update(protocol.LocalDeviceID, []protocol.FileInfo{
 		{Name: "dummyfile"},
 	})