ART: Continue adding override annotations

Use Clang-tidy's modernize-use-override to add more annotations. Ignore
inferred annotations on destructors.

Bug: 32619234
Test: mmma art
Change-Id: Ic432c928e398d44df9171e42db04ee19946e6887
diff --git a/dexlist/dexlist_test.cc b/dexlist/dexlist_test.cc
index 68e6713..39e5f8c 100644
--- a/dexlist/dexlist_test.cc
+++ b/dexlist/dexlist_test.cc
@@ -33,7 +33,7 @@
 
 class DexListTest : public CommonRuntimeTest {
  protected:
-  virtual void SetUp() {
+  void SetUp() override {
     CommonRuntimeTest::SetUp();
     // Dogfood our own lib core dex file.
     dex_file_ = GetLibCoreDexFileNames()[0];