Enable store elimination for singleton objects.

Enable store elimination for singleton objects. However for finalizable object,
don't eliminate stores. Also added a testcase.

Change-Id: Icf991e7ded5b490f55f580ef928ece5c45e89902
diff --git a/compiler/dex/quick/gen_common.cc b/compiler/dex/quick/gen_common.cc
index 2b60a51..5da7214 100644
--- a/compiler/dex/quick/gen_common.cc
+++ b/compiler/dex/quick/gen_common.cc
@@ -1104,7 +1104,11 @@
   // access because the verifier was unable to?
   const DexFile* dex_file = cu_->dex_file;
   CompilerDriver* driver = cu_->compiler_driver;
-  if (driver->CanAccessInstantiableTypeWithoutChecks(cu_->method_idx, *dex_file, type_idx)) {
+  bool finalizable;
+  if (driver->CanAccessInstantiableTypeWithoutChecks(cu_->method_idx,
+                                                     *dex_file,
+                                                     type_idx,
+                                                     &finalizable)) {
     bool is_type_initialized;
     bool use_direct_type_ptr;
     uintptr_t direct_type_ptr;