chrash in hotspot in handling perfparser output about hotspot HOT 7 CLOSED

It seems that is handled in other places:

        if (type < 0) {
            qCWarning(LOG_PERFPARSER) << "Unexpected attribute id:" << sampleCost.attributeId << "Only know about"
                                      << attributeIdsToCostIds.size() << "attributes so far";
            return;
        }

So I'll do something similar.

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@the8472 please check the appimage from https://github.com/KDAB/hotspot/actions/runs/7291612961 - but I'd guess that fixes the crash.

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It does

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This let me figure out what the issue was with "{cycles,instructions}:S". perf doesn't attach to subprocesses for some reason.
Adding -a to do a system-wide record works. But then hotspot crashes again (either segfault or getting OOM-killed)

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if you can reproduce the crash and the perf recording is not huge - feel free to upload perf.data.gz (less than 50MB) here and I may be able to have another look.

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It's several GB in size. Also it's a whole-system profile, I'd rather not share that.
Perhaps it is related to the -a flag and processing debug info for all the processes on the system.

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