Add static assertion that our Fake_type_info is the same size as the real one

Change-Id: Id8490bb6373d85be2c529a005be55295c530febb

bridges/source/cpp_uno/gcc3_ios_arm/except.cxx

@@ -52,6 +52,9 @@ struct Fake_type_info {
     char const * name;
 };
 
+BOOST_STATIC_ASSERT(
+    sizeof (Fake_type_info) == sizeof (std::type_info));
+
 struct Fake_class_type_info: Fake_type_info {};
 
 #if defined(MACOSX) && MACOSX_SDK_VERSION < 1070