Force inlining of ObjectArray::Get.

Hot array access used in Class::Implements, forcing inlining moves
InstanceOfNot DalvikPerf benchmark from 416 to 176.

Change-Id: Ibf06d46ed82a50dbdc5620ed2b81a3f3d173ad41
diff --git a/src/object.h b/src/object.h
index 07debab..947b77d 100644
--- a/src/object.h
+++ b/src/object.h
@@ -1127,7 +1127,7 @@
 }
 
 template<class T>
-T* ObjectArray<T>::Get(int32_t i) const {
+inline T* ObjectArray<T>::Get(int32_t i) const {
   if (UNLIKELY(!IsValidIndex(i))) {
     return NULL;
   }