trace_templated_super.cpp:23:1: warning: [blink-gc] Class 'Sub<blink::HeapObject>' has untraced fields that require tracing.
template<typename T>
^
./trace_templated_super.h:35:5: note: [blink-gc] Untraced field 'm_obj' declared here:
    Member<HeapObject> m_obj;
    ^
1 warning generated.