[wasm] Memory is exported on the module.exports object.

test/mjsunit/wasm/module-memory.js

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Flags: --expose-wasm --expose-gc --stress-compaction
 
 load("test/mjsunit/wasm/wasm-constants.js");
 load("test/mjsunit/wasm/wasm-module-builder.js");
 
 var kMemSize = 65536;
@@ skipping 15 matching lines @@
                 kExprSetLocal,0,
                   kExprI32Sub,kExprGetLocal,0,kExprI8Const,4,
         kExprI8Const,0])
     .exportFunc();
 
   return builder.instantiate(null, memory);
 }
 
 function testPokeMemory() {
   var module = genModule(null);
-  var buffer = module.memory;
+  var buffer = module.exports.memory;
   var main = module.exports.main;
   assertEquals(kMemSize, buffer.byteLength);
 
   var array = new Int8Array(buffer);
   assertEquals(kMemSize, array.length);
 
   for (var i = 0; i < kMemSize; i++) {
     assertEquals(0, array[i]);
   }
 
@@ skipping 92 matching lines @@
   }
 
 
   for (offset = 65534; offset < 66536; offset++) {
     assertTraps(kTrapMemOutOfBounds, read);
     assertTraps(kTrapMemOutOfBounds, write);
   }
 }
 
 testOOBThrows();