[wasm] Remove non-standard kExprI8Const bytecode

test/mjsunit/wasm/instantiate-module-basic.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");
 
-let kReturnValue = 117;
+let kReturnValue = 17;
 
 let buffer = (() => {
   let builder = new WasmModuleBuilder();
   builder.addMemory(1, 1, true);
   builder.addFunction("main", kSig_i_v)
-    .addBody([kExprI8Const, kReturnValue])
+    .addBody([kExprI32Const, kReturnValue])
     .exportFunc();
 
   return builder.toBuffer();
 })()
 
 function CheckInstance(instance) {
   assertFalse(instance === undefined);
   assertFalse(instance === null);
   assertFalse(instance === 0);
   assertEquals("object", typeof instance);
@@ skipping 192 matching lines @@
   assertEquals(1, i1.exports.f());
   assertEquals(1000, i2.exports.f());
 })();
 
 (function MustBeMemory() {
   print("MustBeMemory...");
   var memory = new ArrayBuffer(65536);
   var module = new WebAssembly.Module(buffer);
   assertThrows(() => new WebAssembly.Instance(module, null, memory), TypeError);
 })();