[wasm] Binary 11: AST changes.

test/mjsunit/wasm/export-table.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");
 
 (function testExportedMain() {
   var kReturnValue = 88;
   var builder = new WasmModuleBuilder();
 
   builder.addFunction("main", [kAstI32])
     .addBody([
-      kExprReturn,
       kExprI8Const,
-      kReturnValue])
+      kReturnValue,
+      kExprReturn, kArity1
+    ])
     .exportFunc();
 
   var module = builder.instantiate();
 
   assertEquals("object", typeof module.exports);
   assertEquals("function", typeof module.exports.main);
 
   assertEquals(kReturnValue, module.exports.main());
 })();
 
 (function testExportedTwice() {
   var kReturnValue = 99;
 
   var builder = new WasmModuleBuilder();
 
   builder.addFunction("main", [kAstI32])
     .addBody([
-      kExprReturn,
       kExprI8Const,
-      kReturnValue])
+      kReturnValue,
+      kExprReturn, kArity1
+    ])
     .exportAs("blah")
     .exportAs("foo");
 
   var module = builder.instantiate();
 
   assertEquals("object", typeof module.exports);
   assertEquals("function", typeof module.exports.blah);
   assertEquals("function", typeof module.exports.foo);
 
   assertEquals(kReturnValue, module.exports.foo());
   assertEquals(kReturnValue, module.exports.blah());
 })();