[wasm] asm.js - Remove Wasm.instantiateModuleFromAsm, use asm.js directly.

test/mjsunit/regress/regress-608630.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
+// Flags: --validate-asm --allow-natives-syntax
 
 var __v_5 = {};
 var __v_35 = {};
 var __v_44 = {};
 var __v_43 = {};
 
 try {
 __v_1 = 1;
 __v_2 = {
   get: function() { return function() {} },
@@ skipping 13 matching lines @@
   var __v_2 = __v_1.replace(new RegExp("use asm"), "");
   var __v_39 = {Math: Math};
   var __v_4 = eval("(" + __v_2 + ")")(__v_3);
   print("Testing " + asmfunc.name + " (js)...");
   __v_44.valueOf = __v_43;
   expect(__v_4);
   print("Testing " + asmfunc.name + " (asm.js)...");
   var __v_5 = asmfunc(__v_3);
   expect(__v_5);
   print("Testing " + asmfunc.name + " (wasm)...");
-  var __v_6 = Wasm.instantiateModuleFromAsm(__v_1, {}, __v_3);
+  var module_func = eval(__v_1);
+  var __v_6 = module_func({}, __v_3);
+  assertTrue(%IsAsmWasmCode(module_func));
   expect(__v_6);
 }
 function __f_2() {
   "use asm";
   function __f_3() { return 0; }
   function __f_4() { return 1; }
   function __f_5() { return 4; }
   function __f_6() { return 64; }
   function __f_7() { return 137; }
   function __f_8() { return 128; }
@@ skipping 10 matching lines @@
   assertEquals(1, module.__f_4());
   assertEquals(4, module.__f_5());
   assertEquals(64, module.__f_6());
   assertEquals(128, module.__f_8());
   assertEquals(-1, module.__f_9());
   assertEquals(1000, module.__f_10());
   assertEquals(2000000, module.__f_11());
   assertEquals(2147483647, module.__f_12());
 });
 } catch(e) { print("Caught: " + e); }