[wasm] Remove non-standard kExprI8Const bytecode

test/mjsunit/wasm/function-prototype.js

Index: test/mjsunit/wasm/function-prototype.js
diff --git a/test/mjsunit/wasm/function-prototype.js b/test/mjsunit/wasm/function-prototype.js
index f2361039c9cc2f97b4cbc09ff7bca6cffc0c5dde..d3356cec80ea5b31f6f85c345e6661ba3d4db728 100644
--- a/test/mjsunit/wasm/function-prototype.js
+++ b/test/mjsunit/wasm/function-prototype.js
@@ -11,7 +11,7 @@ load("test/mjsunit/wasm/wasm-module-builder.js");
   var builder = new WasmModuleBuilder();
 
   var f = builder.addFunction("nine", kSig_i_v)
-    .addBody([kExprI8Const, 9])
+    .addBody([kExprI32Const, 9])
     .exportFunc();
 
   var func = builder.instantiate().exports.nine;