1 trace_after_dispatch.cpp:11:1: warning: [blink-gc] Missing dispatch to class 'D' in manual trace dispatch. 2 void A::Trace(Visitor* visitor) 3 ^ 4 trace_after_dispatch.cpp:30:1: warning: [blink-gc] Base class 'A' of derived class 'B' requires tracing. 5 void B::TraceAfterDispatch(Visitor* visitor) 6 ^ 7 trace_after_dispatch.cpp:38:1: warning: [blink-gc] Class 'C' has untraced fields that require tracing. 8 void C::TraceAfterDispatch(Visitor* visitor) 9 ^ 10 ./trace_after_dispatch.h:36:5: note: [blink-gc] Untraced field 'm_a' declared here: 11 Member<A> m_a; 12 ^ 13 3 warnings generated. 14