private CodeTypeRef(CodeModelState state, object parent, ProjectId projectId, ITypeSymbol typeSymbol)
: base(state)
{
_parentHandle = new ParentHandle <object>(parent);
_projectId = projectId;
_symbolId = typeSymbol.GetSymbolKey();
}
private RootCodeModel(CodeModelState state, object parent, ProjectId projectId)
: base(state)
{
_parentHandle = new ParentHandle <object>(parent);
_projectId = projectId;
}