ParameterSystem: add function to query if registration is open

opm/models/utils/parametersystem.cpp

@@ -454,6 +454,11 @@ void reset()
     MetaData::clear();
 }
 
+bool IsRegistrationOpen()
+{
+    return MetaData::registrationOpen();
+}
+
 void endRegistration()
 {
     if (!MetaData::registrationOpen()) {

opm/models/utils/parametersystem.hpp

@@ -393,6 +393,12 @@ void Hide()
     detail::Hide_(detail::getParamName<Param>());
 }
 
+/*!
+ * \brief Query whether parameter registration is open or not.
+ * \return True if registration is open, false otherwise
+ */
+bool IsRegistrationOpen();
+
 /*!
  * \brief Indicate that all parameters are registered for a given type tag.
  *

opm/simulators/flow/FlowMain.hpp

@@ -84,7 +84,7 @@ namespace Opm {
         // Read the command line parameters. Throws an exception if something goes wrong.
         static int setupParameters_(int argc, char** argv, Parallel::Communication comm)
         {
-            if (!Parameters::MetaData::registrationOpen()) {
+            if (!Parameters::IsRegistrationOpen()) {
                 // We have already successfully run setupParameters_().
                 // For the dynamically chosen runs (as from the main flow
                 // executable) we must run this function again with the