SymtabEntry utype = typeOf (u.type ());
if (utype instanceof EnumEntry && importTypes.contains (utype))
addTo (importList, utype.name ());
// Look through the branches
Enumeration branches = u.branches ().elements ();
while (branches.hasMoreElements ())
{
UnionBranch branch = (UnionBranch)branches.nextElement ();
SymtabEntry branchEntry = typeOf (branch.typedef);
if (importTypes.contains (branchEntry))