What is the problem this feature will solve?

Since we've been migrating things to use CppHeap, we have a bunch of extra GC-managed memory which has become a bit less mysterious to V8. This means we can take better advantage of V8 interfaces to get observability into this memory.

What is the feature you are proposing to solve the problem?

It would likely be an easy win to expose CppHeap data via cppgc::CppHeap::CollectStatistics() in the v8 module.

cc @nodejs/diagnostics

What alternatives have you considered?

No response