
Currently, we try to instantiate the allocator on `__hash_value_type`, which we don't define anymore. Instead, just use the `map::allocator_type` to instantiate `__tree`, since that's what we actually want anyways.
Currently, we try to instantiate the allocator on `__hash_value_type`, which we don't define anymore. Instead, just use the `map::allocator_type` to instantiate `__tree`, since that's what we actually want anyways.