[wasm] Rename _WASMEXP_ object to Wasm.

test/mjsunit/wasm/test-wasm-module-builder.js

 // Copyright 2016 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');
 load('test/mjsunit/wasm/wasm-module-builder.js');
 
 var debug = false;
 
 (function BasicTest() {
     var module = new WasmModuleBuilder();
     module.addMemory(1, 2, false);
     module.addFunction("foo", [kAstI32])
         .addBody([kExprI8Const, 11])
         .exportAs("blarg");
 
     var buffer = module.toBuffer(debug);
-    var instance = _WASMEXP_.instantiateModule(buffer);
+    var instance = Wasm.instantiateModule(buffer);
     assertEquals(11, instance.exports.blarg());
 })();
 
 (function ImportTest() {
     var module = new WasmModuleBuilder();
     var index = module.addImport("print", [kAstStmt, kAstI32]);
     module.addFunction("foo", [kAstStmt])
         .addBody([kExprCallImport, index, kExprI8Const, 13])
         .exportAs("main");
 
     var buffer = module.toBuffer(debug);
-    var instance = _WASMEXP_.instantiateModule(buffer, {print: print});
+    var instance = Wasm.instantiateModule(buffer, {print: print});
     print("should print 13! ");
     instance.exports.main();
 })();
 
 (function LocalsTest() {
     var module = new WasmModuleBuilder();
     module.addFunction(undefined, [kAstI32, kAstI32])
         .addLocals({i32_count: 1})
         .addBody([kExprSetLocal, 1, kExprGetLocal, 0])
         .exportAs("main");
 
     var buffer = module.toBuffer(debug);
-    var instance = _WASMEXP_.instantiateModule(buffer);
+    var instance = Wasm.instantiateModule(buffer);
     assertEquals(19, instance.exports.main(19));
     assertEquals(27777, instance.exports.main(27777));
 })();
 
 (function LocalsTest2() {
     // TODO(titzer): i64 only works on 64-bit platforms.
     var types = [
       {locals: {i32_count: 1}, type: kAstI32},
 //      {locals: {i64_count: 1}, type: kAstI64},
       {locals: {f32_count: 1}, type: kAstF32},
       {locals: {f64_count: 1}, type: kAstF64},
     ];
 
     for (p of types) {
       var module = new WasmModuleBuilder();
       module.addFunction(undefined, [p.type, p.type])
         .addLocals(p.locals)
         .addBody([kExprSetLocal, 1, kExprGetLocal, 0])
         .exportAs("main");
 
       var buffer = module.toBuffer(debug);
-      var instance = _WASMEXP_.instantiateModule(buffer);
+      var instance = Wasm.instantiateModule(buffer);
       assertEquals(19, instance.exports.main(19));
       assertEquals(27777, instance.exports.main(27777));
     }
 })();
 
 (function CallTest() {
     var module = new WasmModuleBuilder();
     module.addFunction("add", [kAstI32, kAstI32, kAstI32])
         .addBody([kExprI32Add, kExprGetLocal, 0, kExprGetLocal, 1]);
     module.addFunction("main", [kAstI32, kAstI32, kAstI32])
@@ skipping 23 matching lines @@
 
 (function DataSegmentTest() {
     var module = new WasmModuleBuilder();
     module.addMemory(1, 1, false);
     module.addFunction("load", [kAstI32, kAstI32])
         .addBody([kExprI32LoadMem, 0, kExprGetLocal, 0])
         .exportAs("load");
     module.addDataSegment(0, [9, 9, 9, 9], true);
 
     var buffer = module.toBuffer(debug);
-    var instance = _WASMEXP_.instantiateModule(buffer);
+    var instance = Wasm.instantiateModule(buffer);
     assertEquals(151587081, instance.exports.load(0));
 })();
 
 
 (function BasicTestWithUint8Array() {
     var module = new WasmModuleBuilder();
     module.addMemory(1, 2, false);
     module.addFunction("foo", [kAstI32])
         .addBody([kExprI8Const, 17])
         .exportAs("blarg");
 
     var buffer = module.toBuffer(debug);
     var array = new Uint8Array(buffer);
-    var instance = _WASMEXP_.instantiateModule(array);
+    var instance = Wasm.instantiateModule(array);
     assertEquals(17, instance.exports.blarg());
 
     var kPad = 5;
     var buffer2 = new ArrayBuffer(kPad + buffer.byteLength + kPad);
     var whole = new Uint8Array(buffer2);
     for (var i = 0; i < whole.byteLength; i++) {
       whole[i] = 0xff;
     }
     var array2 = new Uint8Array(buffer2, kPad, buffer.byteLength);
     for (var i = 0; i < array2.byteLength; i++) {
       array2[i] = array[i];
     }
-    var instance = _WASMEXP_.instantiateModule(array2);
+    var instance = Wasm.instantiateModule(array2);
     assertEquals(17, instance.exports.blarg());
 })();