Revert "Hash-based dex cache type array."

Reverting to work around some programs crashing with
    Check failed: handle_scope_iface.Get() != nullptr.
though the reason for the failure not yet understood.

Test: m test-art-host
Bug: 34839984
Bug: 30627598
Bug: 34659969
Bug: 30419309

This reverts commit ec7862283dd49f5a58d0ac45960ce27c2f7671b8.

Change-Id: Ifded663633082f1e59e5b6ff2e026dc559bd6b82
diff --git a/runtime/art_method-inl.h b/runtime/art_method-inl.h
index efcdbbf..7ec3900 100644
--- a/runtime/art_method-inl.h
+++ b/runtime/art_method-inl.h
@@ -175,19 +175,12 @@
 }
 
 inline mirror::Class* ArtMethod::GetClassFromTypeIndex(dex::TypeIndex type_idx, bool resolve) {
-  // TODO: Refactor this function into two functions, Resolve...() and Lookup...()
-  // so that we can properly annotate it with no-suspension possible / suspension possible.
   ObjPtr<mirror::DexCache> dex_cache = GetDexCache();
   ObjPtr<mirror::Class> type = dex_cache->GetResolvedType(type_idx);
-  if (UNLIKELY(type == nullptr)) {
+  if (UNLIKELY(type == nullptr) && resolve) {
     ClassLinker* class_linker = Runtime::Current()->GetClassLinker();
-    if (resolve) {
-      type = class_linker->ResolveType(type_idx, this);
-      CHECK(type != nullptr || Thread::Current()->IsExceptionPending());
-    } else {
-      type = class_linker->LookupResolvedType(
-          *dex_cache->GetDexFile(), type_idx, dex_cache, GetClassLoader());
-    }
+    type = class_linker->ResolveType(type_idx, this);
+    CHECK(type != nullptr || Thread::Current()->IsExceptionPending());
   }
   return type.Ptr();
 }