[api] Prototype WeakRef implementation

src/objects-body-descriptors-inl.h

Index: src/objects-body-descriptors-inl.h
diff --git a/src/objects-body-descriptors-inl.h b/src/objects-body-descriptors-inl.h
index 3f54f6f690cdb85f929d586563ec24ffd9130ee9..fab64e2923198aa750bc983682c153133d50b871 100644
--- a/src/objects-body-descriptors-inl.h
+++ b/src/objects-body-descriptors-inl.h
@@ -557,6 +557,7 @@ ReturnType BodyDescriptorApply(InstanceType type, T1 p1, T2 p2, T3 p3) {
       return Op::template apply<JSObject::BodyDescriptor>(p1, p2, p3);
     case JS_WEAK_MAP_TYPE:
     case JS_WEAK_SET_TYPE:
+    case JS_WEAK_REF_TYPE:
       return Op::template apply<JSWeakCollection::BodyDescriptor>(p1, p2, p3);
     case JS_ARRAY_BUFFER_TYPE:
       return Op::template apply<JSArrayBuffer::BodyDescriptor>(p1, p2, p3);