Make RunApplication() return a MojoResult and TerminateApplication() take one.

mojo/public/cpp/bindings/tests/versioning_test_service.cc

Index: mojo/public/cpp/bindings/tests/versioning_test_service.cc
diff --git a/mojo/public/cpp/bindings/tests/versioning_test_service.cc b/mojo/public/cpp/bindings/tests/versioning_test_service.cc
index 3f7d5036c9aae22e970fe506e247558df2056782..7c59787ef1563688896bdf9d6f46b3cc53a2ff47 100644
--- a/mojo/public/cpp/bindings/tests/versioning_test_service.cc
+++ b/mojo/public/cpp/bindings/tests/versioning_test_service.cc
@@ -121,6 +121,5 @@ class HumanResourceSystemServer : public ApplicationImplBase {
 
 MojoResult MojoMain(MojoHandle application_request) {
   mojo::test::versioning::HumanResourceSystemServer hr_system_server;
-  mojo::RunApplication(application_request, &hr_system_server);
-  return MOJO_RESULT_OK;
+  return mojo::RunApplication(application_request, &hr_system_server);
 }