Identifies functions that have been re-implemented.
Given this code:
class Base { public: void f(); }; class Derived : public Base { public: void f(); };
Then function Derived::f would have the cxxFunctionReimplemented element thus:
<cxxFunctionReimplemented href="class_base.xml#class_base_1a1b981706372d75125af29b377d33ba66">Base::f()</cxxFunctionReimplemented>