Add and use OPM_DEFLOG_PROBLEM macro.

This should replace OPM_DEFLOG_THROW in places where the problem
category is more appropriate than the error category.

In this commit, uses of OPM_DEFLOG_THROW have been replaced whenever
the exception class used was NumericalProblem.

opm/simulators/utils/DeferredLoggingErrorHelpers.hpp

@@ -32,7 +32,7 @@
 #include <exception>
 #include <stdexcept>
 
-// Macro to throw an exception.
+// Macro to log an error and throw an exception.
 // Inspired by ErrorMacros.hpp in opm-common.
 // NOTE: For this macro to work, the
 // exception class must exhibit a constructor with the signature
@@ -51,6 +51,23 @@
         throw Exception(oss_);                                 \
     } while (false)
 
+// Macro to log a problem and throw an exception.
+// Idenitical to OPM_DEFLOG_THROW() except for using
+// the "problem" category instead of "error" for the
+// log message. The Exception argument will typically
+// be NumericalProblem.
+//
+// Usage: OPM_DEFLOG_PROBLEM(ExceptionClass, "Error message", DeferredLogger);
+#define OPM_DEFLOG_PROBLEM(Exception, message, deferred_logger)  \
+    do {                                                         \
+        std::string oss_ = std::string{"["} + __FILE__ + ":" +   \
+                           std::to_string(__LINE__) + "] " +     \
+                           message;                              \
+        deferred_logger.problem(oss_);                           \
+        throw Exception(oss_);                                   \
+    } while (false)
+
+
 namespace {
 
 void _throw(Opm::ExceptionType::ExcEnum exc_type,