Move mojom to public/dart

mojo/public/dart/mojom/test/generate_test.dart

Index: mojo/public/dart/mojom/test/generate_test.dart
diff --git a/mojo/dart/mojom/test/generate_test.dart b/mojo/public/dart/mojom/test/generate_test.dart
similarity index 99%
rename from mojo/dart/mojom/test/generate_test.dart
rename to mojo/public/dart/mojom/test/generate_test.dart
index 0ddc862a9ee5d124a051a0b8b6cf30fb1a92bf1d..cf506230f680bac22a93522b9fa4572d4aea539c 100644
--- a/mojo/dart/mojom/test/generate_test.dart
+++ b/mojo/public/dart/mojom/test/generate_test.dart
@@ -42,7 +42,7 @@ main() async {
     mojoSdk = Platform.environment['MOJO_SDK'];
   } else {
     mojoSdk = path.normalize(path.join(
-        path.dirname(Platform.script.path), '..', '..', '..', 'public'));
+        path.dirname(Platform.script.path), '..', '..', '..'));
   }
   if (!await new Directory(mojoSdk).exists()) {
     fail("Could not find the Mojo SDK");