Fix exception processing when there is only finally (#105)

***PUBLISH_RELEASE***
***UPDATE_DEPENDENTS***

Author: josesimoes

source/MetadataProcessor.Core/nanoAssemblyBuilder.cs

@@ -715,7 +715,10 @@ i.Operand is TypeSpecification ||
                         {
                             if(e.HandlerType !=  Mono.Cecil.Cil.ExceptionHandlerType.Filter)
                             {
-                                set.Add(((IMetadataTokenProvider)e.CatchType).MetadataToken);
+                                if(e.CatchType != null)
+                                {
+                                    set.Add(((IMetadataTokenProvider)e.CatchType).MetadataToken);
+                                }
                             }
                         }
                     }

source/MetadataProcessor.Core/nanoDumperGenerator.cs

@@ -268,8 +268,16 @@ private void DumpTypeDefinitions(DumpAllTable dumpTable)
 
                             h.Handler = $"{((int)eh.HandlerType).ToString("x2")} " +
                                 $"{eh.TryStart.Offset.ToString("x8")}->{eh.TryEnd.Offset.ToString("x8")} " +
-                                $"{eh.HandlerStart.Offset.ToString("x8")}->{eh.HandlerEnd.Offset.ToString("x8")} " +
-                                $"{eh.CatchType.MetadataToken.ToInt32().ToString("x8")}";
+                                $"{eh.HandlerStart.Offset.ToString("x8")}->{eh.HandlerEnd.Offset.ToString("x8")} ";
+
+                            if(eh.CatchType != null)
+                            {
+                                h.Handler += $"{eh.CatchType.MetadataToken.ToInt32().ToString("x8")}";
+                            }
+                            else
+                            {
+                                h.Handler += "00000000";
+                            }
 
                             methodDef.ExceptionHandlers.Add(h);
                         }