[TypeScript] Fix namespaceless schema generation (#7432)

* Add tests for ts flatc

* fix typescript generation of namespaceless file

* Add typescript genereated code from generate_code.py

* Support multiple module flatc testing

tests/flatc/main.py

@@ -1,11 +1,29 @@
 #!/usr/bin/env python3
+#
+# Copyright 2022 Google Inc. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 
-import sys;
+import sys
 
 from flatc_test import run_all
 from flatc_cpp_tests import CppTests
+from flatc_ts_tests import TsTests
 
-passing, failing = run_all(CppTests)
+passing, failing = run_all(CppTests, TsTests)
+
+print("")
+print("{0} of {1} tests passed".format(passing, passing + failing))
 
 if failing > 0:
-  sys.exit(1)
+    sys.exit(1)