[compiler-rt] [scudo] Add partial chunk heuristic to retrieval algorithm. (PR #104807)

[via llvm-commits]

================
@@ -336,6 +337,37 @@ TEST_F(MapAllocatorCacheTest, CacheOrder) {
     MemMap.unmap();
 }
 
+TEST_F(MapAllocatorCacheTest, PartialChunkHeuristicRetrievalTest) {
+  const scudo::uptr MaxUnusedCacheBytes = scudo::MaxUnusedCachePages * PageSize;
----------------
ChiaHungDuan wrote:

Don't need to use `scudo::MaxUnusedCachePages`, just pick a constant that makes sense. 

https://github.com/llvm/llvm-project/pull/104807