[GR-67701] [GR-68034] Improve the parallelism of ImageHeapCollectionFeature and the associated ImageHeap{List,Map} data structures #11919
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This PR performs three tasks to achieve the goal specified in the title:
modifiedfield toHostedImageHeapMap(similarly as is done forHostedImageHeapList) to skip the deep scan of each heap map instance inImageHeapCollectionFeature.duringAnalysis.HostedImageHeapListandHostedImageHeapMapappend-only as much as possible to reduce the number of rescans needed.ImageHeapCollectionFeature.duringAnalysisprocess the maps and lists in parallel.