When this is set before calling Merge, then the "transitive closure" of the input assemblies is computed and added to the list of input assemblies.

An assembly is considered part of the transitive closure if it is referenced, either directly or indirectly, from one of the originally

specified input assemblies and it has an external reference to one of the input assemblies, or one of the assemblies that has such a reference.

Command line option: /closed

Default: false