Add macOS tags

Author: Adam Gleitman

packages/react-native/React/DevSupport/RCTInspectorDevServerHelper.mm

@@ -64,7 +64,7 @@ @implementation RCTInspectorDevServerHelper
 
 static void sendEventToAllConnections(NSString *event)
 {
-  @synchronized (socketConnections) {
+  @synchronized (socketConnections) { // [macOS]
     for (NSString *socketId in socketConnections) {
       [socketConnections[socketId] sendEventToAllConnections:event];
     }
@@ -103,7 +103,7 @@ + (RCTInspectorPackagerConnection *)connectWithBundleURL:(NSURL *)bundleURL
   // Note, using a static dictionary isn't really the greatest design, but
   // the packager connection does the same thing, so it's at least consistent.
   // This is a static map that holds different inspector clients per the inspectorURL
-  @synchronized (socketConnections) {
+  @synchronized (socketConnections) { // [macOS]
     if (socketConnections == nil) {
       socketConnections = [NSMutableDictionary new];
     }
@@ -119,7 +119,7 @@ + (RCTInspectorPackagerConnection *)connectWithBundleURL:(NSURL *)bundleURL
 
   RCTInspectorPackagerConnection *connection;
 
-  @synchronized (socketConnections) {
+  @synchronized (socketConnections) { // [macOS]
     connection = socketConnections[key];
     if (!connection || !connection.isConnected) {
       connection = [[RCTInspectorPackagerConnection alloc] initWithURL:inspectorURL];