[d8] Use ValueSerializer for postMessage (instead of ad-hoc serializer)

test/mjsunit/d8-worker-sharedarraybuffer.js

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 10 matching lines @@
 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 // Flags: --harmony-sharedarraybuffer
 
 if (this.Worker) {
-
   (function TestTransfer() {
     var workerScript =
       `onmessage = function(m) {
-       var sab = m;
-       var ta = new Uint32Array(sab);
-       if (sab.byteLength !== 16) {
-         throw new Error('SharedArrayBuffer transfer byteLength');
-       }
-       for (var i = 0; i < 4; ++i) {
-         if (ta[i] !== i) {
-           throw new Error('SharedArrayBuffer transfer value ' + i);
-         }
-       }
+        var sab = m;
+        var ta = new Uint32Array(sab);
+        if (sab.byteLength !== 16) {
+          throw new Error('SharedArrayBuffer transfer byteLength');
+        }
+        for (var i = 0; i < 4; ++i) {
+          if (ta[i] !== i) {
+            throw new Error('SharedArrayBuffer transfer value ' + i);
+          }
+        }
         // Atomically update ta[0]
         Atomics.store(ta, 0, 100);
       };`;
 
     var w = new Worker(workerScript);
 
     var sab = new SharedArrayBuffer(16);
     var ta = new Uint32Array(sab);
     for (var i = 0; i < 4; ++i) {
       ta[i] = i;
     }
 
     // Transfer SharedArrayBuffer
-    w.postMessage(sab, [sab]);
+    w.postMessage(sab);
     assertEquals(16, sab.byteLength);  // ArrayBuffer should not be neutered.
 
     // Spinwait for the worker to update ta[0]
     var ta0;
     while ((ta0 = Atomics.load(ta, 0)) == 0) {}
 
     assertEquals(100, ta0);
 
     w.terminate();
 
@@ skipping 10 matching lines @@
        postMessage(id);
       };`;
 
     var sab = new SharedArrayBuffer(16);
     var ta = new Uint32Array(sab);
 
     var id;
     var workers = [];
     for (id = 0; id < 4; ++id) {
       workers[id] = new Worker(workerScript);
-      workers[id].postMessage({sab: sab, id: id}, [sab]);
+      workers[id].postMessage({sab: sab, id: id});
     }
 
     // Spinwait for each worker to update ta[id]
     var count = 0;
     while (count < 4) {
       for (id = 0; id < 4; ++id) {
         if (Atomics.compareExchange(ta, id, 1, -1) == 1) {
           // Worker is finished.
           assertEquals(id, workers[id].getMessage());
           workers[id].terminate();
           count++;
         }
       }
     }
   })();
 
 }