Fix tests which did not return report_errors()

examples/registry.cpp

@@ -45,6 +45,9 @@ int main() {
     
     // We have erased the `float` type, only `int` remains
     assert(*types.begin() == boost::typeindex::type_id<int>());
+//<-
+    return boost::report_errors();
+//->
 }
 
 //] [/type_index_registry_example]

examples/user_defined_typeinfo.cpp

@@ -64,6 +64,9 @@ int main() {
     assert(worldwide.pretty_name() == "my_classes");
     assert(worldwide == my_type_index::type_id<my_classes>());
 //][/type_index_my_type_index_worldwide_usage]
+//<-
+    return boost::report_errors();
+//->
 }