Improve VerifyNoFromSpaceRefsObjectVisitor logging

Remove read barriers in PrettyTypeOf to prevent recursive failures.

Pass down holder and offset information to
VerifyNoFromSpaceRefsFieldVisitor.

Test: test-art-host
Bug: 37531237
Change-Id: I704ec18ebecfc1ca2982b38f67a2f0788e59dfe9
diff --git a/runtime/mirror/object.cc b/runtime/mirror/object.cc
index f5b9ab3..eabc29a 100644
--- a/runtime/mirror/object.cc
+++ b/runtime/mirror/object.cc
@@ -281,12 +281,16 @@
 }
 
 std::string Object::PrettyTypeOf() {
-  if (GetClass() == nullptr) {
+  // From-space version is the same as the to-space version since the dex file never changes.
+  // Avoiding the read barrier here is important to prevent recursive AssertToSpaceInvariant
+  // issues.
+  ObjPtr<mirror::Class> klass = GetClass<kDefaultVerifyFlags, kWithoutReadBarrier>();
+  if (klass == nullptr) {
     return "(raw)";
   }
   std::string temp;
-  std::string result(PrettyDescriptor(GetClass()->GetDescriptor(&temp)));
-  if (IsClass()) {
+  std::string result(PrettyDescriptor(klass->GetDescriptor(&temp)));
+  if (klass->IsClassClass()) {
     result += "<" + PrettyDescriptor(AsClass()->GetDescriptor(&temp)) + ">";
   }
   return result;