[wasm] Rename the WASM object to _WASMEXP_.

test/mjsunit/wasm/params.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
 
 load("test/mjsunit/wasm/wasm-constants.js");
 
 function runSelect2(module, which, a, b) {
   assertEquals(which == 0 ? a : b, module.select(a, b));
@@ skipping 17 matching lines @@
       kDeclFunctions, 1,
       kDeclFunctionName | kDeclFunctionExport,
       0, 0,
       kNameOffset, 0, 0, 0,       // name offset
       kBodySize, 0,               // body size
       kExprGetLocal, which,       // --
       kDeclEnd,
       's','e','l','e','c','t',0   // name
     );
 
-    var module = WASM.instantiateModule(data);
+    var module = _WASMEXP_.instantiateModule(data);
 
     assertEquals("function", typeof module.select);
     runSelect2(module, which, 99, 97);
     runSelect2(module, which, -99, -97);
 
     if (type != kAstF32) {
       runSelect2(module, which, 0x80000000 | 0, 0x7fffffff | 0);
       runSelect2(module, which, 0x80000001 | 0, 0x7ffffffe | 0);
       runSelect2(module, which, 0xffffffff | 0, 0xfffffffe | 0);
       runSelect2(module, which, -2147483647, 2147483646);
@@ skipping 55 matching lines @@
       kDeclFunctions, 1,
       kDeclFunctionName | kDeclFunctionExport,
       0, 0,
       kNameOffset, 0, 0, 0,       // name offset
       kBodySize, 0,               // body size
       kExprGetLocal, which,       // --
       kDeclEnd,
       's','e','l','e','c','t',0   // name
     );
 
-    var module = WASM.instantiateModule(data);
+    var module = _WASMEXP_.instantiateModule(data);
 
     assertEquals("function", typeof module.select);
     runSelect10(module, which, 99, 97);
     runSelect10(module, which, -99, -97);
 
     if (type != kAstF32) {
       runSelect10(module, which, 0x80000000 | 0, 0x7fffffff | 0);
       runSelect10(module, which, 0x80000001 | 0, 0x7ffffffe | 0);
       runSelect10(module, which, 0xffffffff | 0, 0xfffffffe | 0);
       runSelect10(module, which, -2147483647, 2147483646);
       runSelect10(module, which, -2147483646, 2147483645);
       runSelect10(module, which, -2147483648, 2147483647);
     }
 
     if (type != kAstI32 && type != kAstI64) {
       runSelect10(module, which, -1.25, 5.25);
       runSelect10(module, which, Infinity, -Infinity);
     }
   }
 }
 
 
 testSelect10(kAstI32);
 testSelect10(kAstF32);
 testSelect10(kAstF64);