Refactor module builder

test/mjsunit/wasm/start-function.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 instantiate(sig, body) {
@@ skipping 47 matching lines @@
 })();
 
 
 (function testTwoStartFuncs() {
   print("testTwoStartFuncs");
   var builder = new WasmModuleBuilder();
 
   var func = builder.addFunction("", kSig_v_v)
     .addBody([kExprNop]);
 
-  builder.addExplicitSection([kDeclStartFunction, 0]);
-  builder.addExplicitSection([kDeclStartFunction, 0]);
+  builder.addExplicitSection([kDeclStart, 0]);
+  builder.addExplicitSection([kDeclStart, 0]);
 
   assertThrows(builder.instantiate);
 })();
 
 
 (function testRun() {
   print("testRun");
   var builder = new WasmModuleBuilder();
 
   builder.addMemory(12, 12, true);
@@ skipping 11 matching lines @@
 
 (function testStartFFI() {
   print("testStartFFI");
   var ranned = false;
   var ffi = { foo : function() {
     print("we ranned at stert!");
     ranned = true;
   }};
 
   var builder = new WasmModuleBuilder();
-  var sig_index = builder.addSignature(kSig_v_v);
+  var sig_index = builder.addType(kSig_v_v);
 
   builder.addImport("foo", sig_index);
   var func = builder.addFunction("", sig_index)
     .addBody([kExprCallImport, kArity0, 0]);
 
   builder.addStart(func.index);
 
   var module = builder.instantiate(ffi);
   assertTrue(ranned);
 })();