code: function isOnlyFunction(typ) {
  	return typ instanceof TObject && 
  		   typ.qname === null && 
  		   typ.properties.size() === 0 &&
  		   typ.calls.length > 0 &&
  		   typ.typeParameters.length === 0 &&
  		   typ.supers.length === 0;
  }
docs: -------------------- Merging types --------------------