Revert of [wasm] Master CL for Binary 0xC changes.

test/mjsunit/wasm/calls.js

Index: test/mjsunit/wasm/calls.js
diff --git a/test/mjsunit/wasm/calls.js b/test/mjsunit/wasm/calls.js
index b0feda8c80c865cd1cdfb56ee4bd0151a2a1be5a..4da0501cf2fdedd4af7d54348855aca50dd871a5 100644
--- a/test/mjsunit/wasm/calls.js
+++ b/test/mjsunit/wasm/calls.js
@@ -20,16 +20,13 @@
   assertFalse(mem === null);
   assertFalse(mem === 0);
   assertEquals("object", typeof mem);
-  assertTrue(mem instanceof WebAssembly.Memory);
-  var buf = mem.buffer;
-  assertTrue(buf instanceof ArrayBuffer);
-  assertEquals(memsize, buf.byteLength);
+  assertTrue(mem instanceof ArrayBuffer);
   for (var i = 0; i < 4; i++) {
     module.exports.memory = 0;  // should be ignored
-    mem.buffer = 0; // should be ignored
-    assertSame(mem, module.exports.memory);
-    assertSame(buf, mem.buffer);
+    assertEquals(mem, module.exports.memory);
   }
+
+  assertEquals(memsize, module.exports.memory.byteLength);
 }
 
 function assertFunction(module, func) {