Add default template args to Heap::Alloc*Object*().

Namely kInstrumented=true and kCheckLargeObject=true.

This is a follow-up after
    https://android-review.googlesource.com/963693

Test: m test-art-host-gtest
Test: testrunner.py --host --optimizing
Change-Id: I6c23e76f90f1892382c3bb8c331d12437bc23f89
diff --git a/runtime/mirror/array-alloc-inl.h b/runtime/mirror/array-alloc-inl.h
index eb083f7..c1e0175 100644
--- a/runtime/mirror/array-alloc-inl.h
+++ b/runtime/mirror/array-alloc-inl.h
@@ -144,14 +144,14 @@
   if (!kFillUsable) {
     SetLengthVisitor visitor(component_count);
     result = ObjPtr<Array>::DownCast(
-        heap->AllocObjectWithAllocator<kIsInstrumented, true>(
+        heap->AllocObjectWithAllocator<kIsInstrumented>(
             self, array_class, size, allocator_type, visitor));
   } else {
     SetLengthToUsableSizeVisitor visitor(component_count,
                                          DataOffset(1U << component_size_shift).SizeValue(),
                                          component_size_shift);
     result = ObjPtr<Array>::DownCast(
-        heap->AllocObjectWithAllocator<kIsInstrumented, true>(
+        heap->AllocObjectWithAllocator<kIsInstrumented>(
             self, array_class, size, allocator_type, visitor));
   }
   if (kIsDebugBuild && result != nullptr && Runtime::Current()->IsStarted()) {