/// <summary>
/// Returns the most restrictive visibility of any member mentioned within the expression.
/// I.e., if a private member is referenced within the expression, then TypeMemberVisibility.Private
/// is returned. If TypeMemberVisibility.Public is returned, then all referenced members are public.
/// </summary>
public static TypeMemberVisibility MostRestrictiveVisibility(IMetadataHost host, IExpression expression) {
var v = new Visibility(host);
v.Traverse(expression);
return v.currentVisibility;
}
