In file included from persistent_field_in_gc_managed_class.cpp:5:
./persistent_field_in_gc_managed_class.h:20:1: warning: [blink-gc] Class 'HeapObject' contains GC root in field 'm_part'.
class HeapObject : public GarbageCollected<HeapObject> {
^
./persistent_field_in_gc_managed_class.h:27:5: note: [blink-gc] Field 'm_part' with embedded GC root in 'HeapObject' declared here:
    PartObject m_part;
    ^
./persistent_field_in_gc_managed_class.h:17:5: note: [blink-gc] Field 'm_obj' defining a GC root declared here:
    Persistent<HeapObject> m_obj;
    ^
./persistent_field_in_gc_managed_class.h:20:1: warning: [blink-gc] Class 'HeapObject' contains GC root in field 'm_parts'.
class HeapObject : public GarbageCollected<HeapObject> {
^
./persistent_field_in_gc_managed_class.h:28:5: note: [blink-gc] Field 'm_parts' with embedded GC root in 'HeapObject' declared here:
    HeapVector<PartObject> m_parts;
    ^
./persistent_field_in_gc_managed_class.h:17:5: note: [blink-gc] Field 'm_obj' defining a GC root declared here:
    Persistent<HeapObject> m_obj;
    ^
./persistent_field_in_gc_managed_class.h:20:1: warning: [blink-gc] Class 'HeapObject' contains GC root in field 'm_unique_part'.
class HeapObject : public GarbageCollected<HeapObject> {
^
./persistent_field_in_gc_managed_class.h:29:5: note: [blink-gc] Field 'm_unique_part' with embedded GC root in 'HeapObject' declared here:
    std::unique_ptr<PartObject> m_unique_part;
    ^
./persistent_field_in_gc_managed_class.h:17:5: note: [blink-gc] Field 'm_obj' defining a GC root declared here:
    Persistent<HeapObject> m_obj;
    ^
./persistent_field_in_gc_managed_class.h:20:1: warning: [blink-gc] Class 'HeapObject' contains GC root in field 'm_objs'.
class HeapObject : public GarbageCollected<HeapObject> {
^
./persistent_field_in_gc_managed_class.h:30:5: note: [blink-gc] Field 'm_objs' defining a GC root declared here:
    Persistent<GCedHeapVector<Member<HeapObject>>> m_objs;
    ^
./persistent_field_in_gc_managed_class.h:20:1: warning: [blink-gc] Class 'HeapObject' contains GC root in field 'm_weakPersistent'.
class HeapObject : public GarbageCollected<HeapObject> {
^
./persistent_field_in_gc_managed_class.h:31:5: note: [blink-gc] Field 'm_weakPersistent' defining a GC root declared here:
    WeakPersistent<HeapObject> m_weakPersistent;
    ^
./persistent_field_in_gc_managed_class.h:20:1: warning: [blink-gc] Class 'HeapObject' contains a reference to a GC root in field 'm_ref'. Avoid holding references to GC roots. This should generally not be needed.
class HeapObject : public GarbageCollected<HeapObject> {
^
./persistent_field_in_gc_managed_class.h:32:5: note: [blink-gc] Field 'm_ref' defining reference to a GC root declared here:
    Persistent<HeapObject>& m_ref;
    ^
./persistent_field_in_gc_managed_class.h:20:1: warning: [blink-gc] Class 'HeapObject' contains a reference to a GC root in field 'm_ptr'. Avoid holding references to GC roots. This should generally not be needed.
class HeapObject : public GarbageCollected<HeapObject> {
^
./persistent_field_in_gc_managed_class.h:33:5: note: [blink-gc] Field 'm_ptr' defining reference to a GC root declared here:
    Persistent<HeapObject>* m_ptr;
    ^
7 warnings generated.