A simple set of JNI argument passing tests.

Change-Id: Ibf2051fae4b5026a4a14fcdc27be71415520d117

(cherry picked from commit cd8016c67b7f215bf374467257ede53197c44423)Conflicts:
diff --git a/NativeCode.mk b/NativeCode.mk
index c85e22f..f8312ae 100644
--- a/NativeCode.mk
+++ b/NativeCode.mk
@@ -70,6 +70,7 @@
 core_cppflags += -std=gnu++11
 
 core_test_files := \
+  luni/src/test/native/dalvik_system_JniTest.cpp \
   luni/src/test/native/test_openssl_engine.cpp \
 
 #