[wasm] Rename the WASM object to _WASMEXP_.

test/mjsunit/wasm/module-memory.js

Index: test/mjsunit/wasm/module-memory.js
diff --git a/test/mjsunit/wasm/module-memory.js b/test/mjsunit/wasm/module-memory.js
index 2b8f76a187553d636da0d6f2d9a9cefabc0a9e5e..e9c1404a4f0bd70933d84962965a159a34104cf2 100644
--- a/test/mjsunit/wasm/module-memory.js
+++ b/test/mjsunit/wasm/module-memory.js
@@ -45,7 +45,7 @@ function genModule(memory) {
     'm', 'a', 'i', 'n', 0       //  --
   );
 
-  return WASM.instantiateModule(data, null, memory);
+  return _WASMEXP_.instantiateModule(data, null, memory);
 }
 
 function testPokeMemory() {
@@ -159,7 +159,7 @@ function testOOBThrows() {
   );
 
   var memory = null;
-  var module = WASM.instantiateModule(data, null, memory);
+  var module = _WASMEXP_.instantiateModule(data, null, memory);
 
   var offset;