void dropAllReferences();
/// hasAddressTaken - returns true if there are any uses of this function
- /// other than direct calls or invokes to it.
- bool hasAddressTaken() const;
+ /// other than direct calls or invokes to it. Optionally passes back the
+ /// offending user for diagnostic purposes.
+ ///
+ bool hasAddressTaken(const User** = 0) const;
+
private:
// Shadow Value::setValueSubclassData with a private forwarding method so that
// subclasses cannot accidentally use it.