Implement java.lang.reflect.Constructor.constructNative.

Change-Id: Iefa92ad1bd89073d4bfa9a80b9e4f0dea90a5849
diff --git a/src/reflection.h b/src/reflection.h
index 7256754..2d18331 100644
--- a/src/reflection.h
+++ b/src/reflection.h
@@ -31,6 +31,8 @@
 
 bool ConvertPrimitiveValue(Class* src_class, Class* dst_class, const JValue& src, JValue& dst);
 
+jobject InvokeMethod(JNIEnv* env, jobject method, jobject receiver, jobject args, jobject params);
+
 bool VerifyObjectInClass(JNIEnv* env, Object* o, Class* c);
 
 }  // namespace art