[wasm] Remove non-standard kExprI8Const bytecode

test/mjsunit/wasm/compiled-module-serialization.js

Index: test/mjsunit/wasm/compiled-module-serialization.js
diff --git a/test/mjsunit/wasm/compiled-module-serialization.js b/test/mjsunit/wasm/compiled-module-serialization.js
index 471efac5d9cf9cce551b175bded6cc525be92465..89611653fbcdc33df20ea224795928fc8e2d18a7 100644
--- a/test/mjsunit/wasm/compiled-module-serialization.js
+++ b/test/mjsunit/wasm/compiled-module-serialization.js
@@ -66,7 +66,7 @@ load("test/mjsunit/wasm/wasm-module-builder.js");
 (function RelationBetweenModuleAndClone() {
   let builder = new WasmModuleBuilder();
   builder.addFunction("main", kSig_i_v)
-    .addBody([kExprI8Const, 42])
+    .addBody([kExprI32Const, 42])
     .exportFunc();
 
   var wire_bytes = builder.toBuffer();
@@ -83,7 +83,7 @@ load("test/mjsunit/wasm/wasm-module-builder.js");
 (function SerializeAfterInstantiation() {
   let builder = new WasmModuleBuilder();
   builder.addFunction("main", kSig_i_v)
-    .addBody([kExprI8Const, 42])
+    .addBody([kExprI32Const, 42])
     .exportFunc();
 
   var wire_bytes = builder.toBuffer()