[test] Fix Fuchsia build.

Change-Id: Iddd99266b48bd937ac44369a49ec3dc3e5ce6144
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/464604
Commit-Queue: Ryan Macnak <[email protected]>
Reviewed-by: Alexander Aprelev <[email protected]>

Author: rmacnak-google

BUILD.gn

@@ -378,6 +378,7 @@ if (is_fuchsia) {
     "tests/ffi/vmspecific_highmem_32bit_test.dart",
     "tests/ffi/vmspecific_leaf_call_test.dart",
     "tests/ffi/vmspecific_native_finalizer_2_test.dart",
+    "tests/ffi/vmspecific_native_finalizer_api_calls_test.dart",
     "tests/ffi/vmspecific_native_finalizer_deeply_immutable_test.dart",
     "tests/ffi/vmspecific_native_finalizer_isolate_groups_test.dart",
     "tests/ffi/vmspecific_native_finalizer_isolates_test.dart",