Attribute arena allocations previously marked as STL.

Bug: 28603175
Bug: 28684584

(cherry picked from commit 3ea5a97d27468cec846d958c38d0d706ef7ec67e)

Change-Id: I7f1bd22e7710cca74f4b10fd13cb8fa2c3b1b318
diff --git a/compiler/optimizing/dead_code_elimination.cc b/compiler/optimizing/dead_code_elimination.cc
index 5f11024..49cfff4 100644
--- a/compiler/optimizing/dead_code_elimination.cc
+++ b/compiler/optimizing/dead_code_elimination.cc
@@ -23,7 +23,7 @@
 namespace art {
 
 static void MarkReachableBlocks(HGraph* graph, ArenaBitVector* visited) {
-  ArenaVector<HBasicBlock*> worklist(graph->GetArena()->Adapter());
+  ArenaVector<HBasicBlock*> worklist(graph->GetArena()->Adapter(kArenaAllocDCE));
   constexpr size_t kDefaultWorlistSize = 8;
   worklist.reserve(kDefaultWorlistSize);
   visited->SetBit(graph->GetEntryBlock()->GetBlockId());