code: public void addAvailable(QualifiedName name, List<Decl.Named> available) {
  		ExternalGroup group = (ExternalGroup) symbolTable.get(name.getUnit());
  		//
  		for (int i = 0; i != available.size(); ++i) {
  			group.addAvailable(available.get(i));
  		}
  	}
docs: Make available declarations for an external symbol. This makes those
  declarations available within the target for linking.
  
  @param name      Fully qualified name of symbol being consolidated.
  @param available List of declaration stubs which have now been imported into
  the target.