internal AssemblyTypeDefinition(AssemblyNamespaceDefinition namespaceDef, TypeDefinition definition)
 {
     _namespaceDefinition = namespaceDef;
     _definition = definition;
 }
 internal AssemblyTypeDefinition(AssemblyTypeDefinition declaringType, TypeDefinition definition)
 {
     _declaringType = declaringType;
     _definition = definition;
 }