[wasm] Binary 11: Module changes.

test/mjsunit/wasm/ffi-error.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");
 load("test/mjsunit/wasm/wasm-module-builder.js");
 
 function testCallFFI(ffi) {
   var builder = new WasmModuleBuilder();
 
-  var sig_index = [kAstI32, kAstF64, kAstF64];
+  var sig_index = kSig_i_dd;
   builder.addImport("fun", sig_index);
   builder.addFunction("main", sig_index)
     .addBody([
       kExprGetLocal, 0,              // --
       kExprGetLocal, 1,              // --
       kExprCallFunction, kArity2, 0, // --
     ])    // --
     .exportFunc();
 
   var module = builder.instantiate(ffi);
@@ skipping 28 matching lines @@
   testCallFFI(ffi);
 });
 
 
 // "fun" should be a JS function.
 assertThrows(function() {
   var ffi = new Object();
   ffi.fun = 0;
   testCallFFI(ffi);
 });