internal override FieldInfo GetField (FieldInfo fromNoninstanciated)
{
initialize ();
if (fields == null)
fields = new Hashtable ();
if (!fields.ContainsKey (fromNoninstanciated))
fields [fromNoninstanciated] = new FieldOnTypeBuilderInst (this, fromNoninstanciated);
return (FieldInfo)fields [fromNoninstanciated];
}