worker: do not use two-arg NewIsolate

PR-URL: #29850
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: David Carlier <devnexen@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>

src/node_worker.cc

@@ -116,7 +116,10 @@ class WorkerThreadData {
     : w_(w) {
     CHECK_EQ(uv_loop_init(&loop_), 0);
 
-    Isolate* isolate = NewIsolate(w->array_buffer_allocator_.get(), &loop_);
+    Isolate* isolate = NewIsolate(
+        w->array_buffer_allocator_.get(),
+        &loop_,
+        w->platform_);
     CHECK_NOT_NULL(isolate);
 
     {