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/compiler/driver/compiler_driver.h b/compiler/driver/compiler_driver.h
index d032a26..503fe3a 100644
--- a/compiler/driver/compiler_driver.h
+++ b/compiler/driver/compiler_driver.h
@@ -187,14 +187,16 @@
       REQUIRES(!requires_constructor_barrier_lock_);
 
   // Are runtime access checks necessary in the compiled code?
-  bool CanAccessTypeWithoutChecks(ObjPtr<mirror::Class> referrer_class,
-                                  ObjPtr<mirror::Class> resolved_class)
+  bool CanAccessTypeWithoutChecks(uint32_t referrer_idx,
+                                  Handle<mirror::DexCache> dex_cache,
+                                  dex::TypeIndex type_idx)
       REQUIRES_SHARED(Locks::mutator_lock_);
 
   // Are runtime access and instantiable checks necessary in the code?
   // out_is_finalizable is set to whether the type is finalizable.
-  bool CanAccessInstantiableTypeWithoutChecks(ObjPtr<mirror::Class> referrer_class,
-                                              ObjPtr<mirror::Class> resolved_class,
+  bool CanAccessInstantiableTypeWithoutChecks(uint32_t referrer_idx,
+                                              Handle<mirror::DexCache> dex_cache,
+                                              dex::TypeIndex type_idx,
                                               bool* out_is_finalizable)
       REQUIRES_SHARED(Locks::mutator_lock_);
 
@@ -404,6 +406,10 @@
                                       uint32_t field_idx)
       REQUIRES_SHARED(Locks::mutator_lock_);
 
+  mirror::ClassLoader* GetClassLoader(const ScopedObjectAccess& soa,
+                                      const DexCompilationUnit* mUnit)
+    REQUIRES_SHARED(Locks::mutator_lock_);
+
  private:
   void PreCompile(jobject class_loader,
                   const std::vector<const DexFile*>& dex_files,