Memory profiling for fun and profit

AllocationList::only_matching_backtraces

fn only_matching_backtraces(
    self: AllocationList,
    backtrace_ids: [Backtrace|AllocationList|MapList|AllocationGroupList|Integer]
) -> AllocationList

fn only_matching_backtraces(
    self: AllocationList,
    backtrace_ids: Backtrace|AllocationList|MapList|AllocationGroupList|Integer
) -> AllocationList

Returns a new AllocationList with only the allocations that come from one of the given backtrace_ids.