Fix a build break caused by an new execution test that cannot run on ARM.

runtime/vm/dart_api_impl_test.cc

Index: runtime/vm/dart_api_impl_test.cc
diff --git a/runtime/vm/dart_api_impl_test.cc b/runtime/vm/dart_api_impl_test.cc
index 80186f60a1d5f8d13cc31b3251df369c39595282..9e722aa0a3ec67cd40bdd86e1e3c58b7c64f32ef 100644
--- a/runtime/vm/dart_api_impl_test.cc
+++ b/runtime/vm/dart_api_impl_test.cc
@@ -612,8 +612,6 @@ TEST_CASE(ListAccess) {
   EXPECT(Dart_IsError(result));
 }
 
-#endif
-
 
 TEST_CASE(ByteArray) {
   Dart_Handle obj1 = Dart_NewByteArray(10);
@@ -667,6 +665,8 @@ TEST_CASE(ByteArray) {
   }
 }
 
+#endif
+
 
 // Unit test for entering a scope, creating a local handle and exiting
 // the scope.