[wasm] Remove non-standard kExprI8Const bytecode

test/mjsunit/wasm/compiled-module-serialization.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 --allow-natives-syntax --expose-gc
 
 load("test/mjsunit/wasm/wasm-constants.js");
 load("test/mjsunit/wasm/wasm-module-builder.js");
 
 (function SerializeAndDeserializeModule() {
@@ skipping 48 matching lines @@
 (function DeserializeInvalidObject() {
   var invalid_buffer = new ArrayBuffer(10);
 
   module = %DeserializeWasmModule(invalid_buffer, invalid_buffer);
   assertEquals(module, undefined);
 })();
 
 (function RelationBetweenModuleAndClone() {
   let builder = new WasmModuleBuilder();
   builder.addFunction("main", kSig_i_v)
-    .addBody([kExprI8Const, 42])
+    .addBody([kExprI32Const, 42])
     .exportFunc();
 
   var wire_bytes = builder.toBuffer();
   var compiled_module = new WebAssembly.Module(wire_bytes);
   var serialized = %SerializeWasmModule(compiled_module);
   var clone = %DeserializeWasmModule(serialized, wire_bytes);
 
   assertNotNull(clone);
   assertFalse(clone == undefined);
   assertFalse(clone == compiled_module);
   assertEquals(clone.constructor, compiled_module.constructor);
 })();
 
 (function SerializeAfterInstantiation() {
   let builder = new WasmModuleBuilder();
   builder.addFunction("main", kSig_i_v)
-    .addBody([kExprI8Const, 42])
+    .addBody([kExprI32Const, 42])
     .exportFunc();
 
   var wire_bytes = builder.toBuffer()
   var compiled_module = new WebAssembly.Module(wire_bytes);
   var instance1 = new WebAssembly.Instance(compiled_module);
   var instance2 = new WebAssembly.Instance(compiled_module);
   var serialized = %SerializeWasmModule(compiled_module);
   var clone = %DeserializeWasmModule(serialized, wire_bytes);
 
   assertNotNull(clone);
   assertFalse(clone == undefined);
   assertFalse(clone == compiled_module);
   assertEquals(clone.constructor, compiled_module.constructor);
   var instance3 = new WebAssembly.Instance(clone);
   assertFalse(instance3 == undefined);
 })();