Fix tests on macosx.

- Wrap functions hidden by CONFIG_MOTION_VAR properly in test code.
- Add some missing ampersands.

Change-Id: Ie7c4e1f14cbacec1c157c7ce110b01350b2ed78e
diff --git a/test/av1_fht16x16_test.cc b/test/av1_fht16x16_test.cc
index e46645a..a776618 100644
--- a/test/av1_fht16x16_test.cc
+++ b/test/av1_fht16x16_test.cc
@@ -204,27 +204,37 @@
 
 #if HAVE_AVX2 && !CONFIG_EMULATE_HARDWARE
 const Ht16x16Param kArrayHt16x16Param_avx2[] = {
-  make_tuple(&av1_fht16x16_avx2, av1_iht16x16_256_add_avx2, 0, AOM_BITS_8, 256),
-  make_tuple(&av1_fht16x16_avx2, av1_iht16x16_256_add_avx2, 1, AOM_BITS_8, 256),
-  make_tuple(&av1_fht16x16_avx2, av1_iht16x16_256_add_avx2, 2, AOM_BITS_8, 256),
-  make_tuple(&av1_fht16x16_avx2, av1_iht16x16_256_add_avx2, 3, AOM_BITS_8, 256),
+  make_tuple(&av1_fht16x16_avx2, &av1_iht16x16_256_add_avx2, 0, AOM_BITS_8,
+             256),
+  make_tuple(&av1_fht16x16_avx2, &av1_iht16x16_256_add_avx2, 1, AOM_BITS_8,
+             256),
+  make_tuple(&av1_fht16x16_avx2, &av1_iht16x16_256_add_avx2, 2, AOM_BITS_8,
+             256),
+  make_tuple(&av1_fht16x16_avx2, &av1_iht16x16_256_add_avx2, 3, AOM_BITS_8,
+             256),
 #if CONFIG_EXT_TX
-  make_tuple(&av1_fht16x16_avx2, av1_iht16x16_256_add_avx2, 4, AOM_BITS_8, 256),
-  make_tuple(&av1_fht16x16_avx2, av1_iht16x16_256_add_avx2, 5, AOM_BITS_8, 256),
-  make_tuple(&av1_fht16x16_avx2, av1_iht16x16_256_add_avx2, 6, AOM_BITS_8, 256),
-  make_tuple(&av1_fht16x16_avx2, av1_iht16x16_256_add_avx2, 7, AOM_BITS_8, 256),
-  make_tuple(&av1_fht16x16_avx2, av1_iht16x16_256_add_avx2, 8, AOM_BITS_8, 256),
-  make_tuple(&av1_fht16x16_avx2, av1_iht16x16_256_add_avx2, 10, AOM_BITS_8,
+  make_tuple(&av1_fht16x16_avx2, &av1_iht16x16_256_add_avx2, 4, AOM_BITS_8,
              256),
-  make_tuple(&av1_fht16x16_avx2, av1_iht16x16_256_add_avx2, 11, AOM_BITS_8,
+  make_tuple(&av1_fht16x16_avx2, &av1_iht16x16_256_add_avx2, 5, AOM_BITS_8,
              256),
-  make_tuple(&av1_fht16x16_avx2, av1_iht16x16_256_add_avx2, 12, AOM_BITS_8,
+  make_tuple(&av1_fht16x16_avx2, &av1_iht16x16_256_add_avx2, 6, AOM_BITS_8,
              256),
-  make_tuple(&av1_fht16x16_avx2, av1_iht16x16_256_add_avx2, 13, AOM_BITS_8,
+  make_tuple(&av1_fht16x16_avx2, &av1_iht16x16_256_add_avx2, 7, AOM_BITS_8,
              256),
-  make_tuple(&av1_fht16x16_avx2, av1_iht16x16_256_add_avx2, 14, AOM_BITS_8,
+  make_tuple(&av1_fht16x16_avx2, &av1_iht16x16_256_add_avx2, 8, AOM_BITS_8,
              256),
-  make_tuple(&av1_fht16x16_avx2, av1_iht16x16_256_add_avx2, 15, AOM_BITS_8, 256)
+  make_tuple(&av1_fht16x16_avx2, &av1_iht16x16_256_add_avx2, 10, AOM_BITS_8,
+             256),
+  make_tuple(&av1_fht16x16_avx2, &av1_iht16x16_256_add_avx2, 11, AOM_BITS_8,
+             256),
+  make_tuple(&av1_fht16x16_avx2, &av1_iht16x16_256_add_avx2, 12, AOM_BITS_8,
+             256),
+  make_tuple(&av1_fht16x16_avx2, &av1_iht16x16_256_add_avx2, 13, AOM_BITS_8,
+             256),
+  make_tuple(&av1_fht16x16_avx2, &av1_iht16x16_256_add_avx2, 14, AOM_BITS_8,
+             256),
+  make_tuple(&av1_fht16x16_avx2, &av1_iht16x16_256_add_avx2, 15, AOM_BITS_8,
+             256)
 #endif  // CONFIG_EXT_TX
 };
 INSTANTIATE_TEST_CASE_P(AVX2, AV1Trans16x16HT,