Implement JNI NewBooleanArray et cetera.

(Primitive types only. NewObjectArray to come...)

Change-Id: I2f54031d96062d666089c91ba40e16028ae21bd4
diff --git a/src/object_test.cc b/src/object_test.cc
index 52fb288..28aecb0 100644
--- a/src/object_test.cc
+++ b/src/object_test.cc
@@ -55,7 +55,7 @@
 
 TEST_F(ObjectTest, AllocObjectArray) {
   ObjectArray<Object>* oa = class_linker_->AllocObjectArray<Object>(2);
-  EXPECT_EQ(2U, oa->GetLength());
+  EXPECT_EQ(2, oa->GetLength());
   EXPECT_TRUE(oa->Get(0) == NULL);
   EXPECT_TRUE(oa->Get(1) == NULL);
   oa->Set(0, oa);