The methods `CollectedHeap::allocate_new_tlab` and
`CollectedHeap::unsafe_max_tlab_alloc` only have the statement `guarantee(false, ...)`. They are never run and overridden by subclasses. It is good to mark them as `pure virtual` instead of giving an implementation.
`CollectedHeap::unsafe_max_tlab_alloc` only have the statement `guarantee(false, ...)`. They are never run and overridden by subclasses. It is good to mark them as `pure virtual` instead of giving an implementation.