Change d8 Worker API so it takes a string instead of a function.

test/mjsunit/d8-worker-sharedarraybuffer.js

 // Copyright 2015 the V8 project authors. All rights reserved.
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 // 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.
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 //       copyright notice, this list of conditions and the following
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 //       from this software without specific prior written permission.
 //
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 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 // 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 --harmony-atomics
 
-function f() {
-  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 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);
+     }
+   }
     // Atomically update ta[0]
     Atomics.store(ta, 0, 100);
-  };
-}
+  };`;
 
 if (this.Worker) {
-  var w = new Worker(f);
+  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]);
   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();
 
   assertEquals(16, sab.byteLength);  // Still not neutered.
 }