ObjPtr<>-ify ClassLinker::FindClass(), fix 1 stale reference use.

Thread::CreateAnnotatedStackTrace() was using a stale
reference `aste_array_class`.

Test: m test-art-host-gtest
Test: testrunner.py --host --optimizing
Bug: 31113334
Change-Id: I191907c0053456bb57de425aa6ccd9668df818a2
diff --git a/runtime/verifier/method_verifier.cc b/runtime/verifier/method_verifier.cc
index cc71dc5..2e3a659 100644
--- a/runtime/verifier/method_verifier.cc
+++ b/runtime/verifier/method_verifier.cc
@@ -144,7 +144,7 @@
 }
 
 FailureKind MethodVerifier::VerifyClass(Thread* self,
-                                        mirror::Class* klass,
+                                        ObjPtr<mirror::Class> klass,
                                         CompilerCallbacks* callbacks,
                                         bool allow_soft_failures,
                                         HardFailLogMode log_level,