Emit an error message if the runtime fails to initialize, instead of just silently aborting (#116171)

Emit an error message if the runtime fails to initialize, instead of just silently aborting

Author: JinShil

src/coreclr/nativeaot/Runtime/thread.cpp

@@ -1232,7 +1232,10 @@ void Thread::EnsureRuntimeInitialized()
     if (g_RuntimeInitializationCallback != NULL)
     {
         if (g_RuntimeInitializationCallback() != 0)
+        {
+            PalPrintFatalError("\nFatal error. .NET runtime failed to initialize.\n");
             RhFailFast();
+        }
 
         g_RuntimeInitializationCallback = NULL;
     }