[wasm] Remove non-standard kExprI8Const bytecode

test/mjsunit/wasm/start-function.js

Index: test/mjsunit/wasm/start-function.js
diff --git a/test/mjsunit/wasm/start-function.js b/test/mjsunit/wasm/start-function.js
index a9d512adcd173bb3c0a07552019a6d439f0a713e..60c011b7edada0b1f6482489b07614994bd75717 100644
--- a/test/mjsunit/wasm/start-function.js
+++ b/test/mjsunit/wasm/start-function.js
@@ -33,7 +33,7 @@ assertVerifies(kSig_v_v, [kExprNop]);
 assertThrows(() => {instantiate(kSig_i_i, [kExprGetLocal, 0]);});
 assertThrows(() => {instantiate(kSig_i_ii, [kExprGetLocal, 0]);});
 assertThrows(() => {instantiate(kSig_i_dd, [kExprGetLocal, 0]);});
-assertThrows(() => {instantiate(kSig_i_v, [kExprI8Const, 0]);});
+assertThrows(() => {instantiate(kSig_i_v, [kExprI32Const, 0]);});
 
 (function testInvalidIndex() {
   print("testInvalidIndex");
@@ -69,14 +69,14 @@ assertThrows(() => {instantiate(kSig_i_v, [kExprI8Const, 0]);});
   builder.addMemory(12, 12, true);
 
   var func = builder.addFunction("", kSig_v_v)
-    .addBody([kExprI8Const, 0, kExprI8Const, 66, kExprI32StoreMem, 0, 0]);
+    .addBody([kExprI32Const, 0, kExprI32Const, 55, kExprI32StoreMem, 0, 0]);
 
   builder.addStart(func.index);
 
   var module = builder.instantiate();
   var memory = module.exports.memory.buffer;
   var view = new Int8Array(memory);
-  assertEquals(66, view[0]);
+  assertEquals(55, view[0]);
 })();
 
 (function testRun2() {
@@ -86,7 +86,7 @@ assertThrows(() => {instantiate(kSig_i_v, [kExprI8Const, 0]);});
   builder.addMemory(12, 12, true);
 
   var func = builder.addFunction("", kSig_v_v)
-    .addBody([kExprI8Const, 0, kExprI8Const, 22, kExprI8Const, 55, kExprI32Add, kExprI32StoreMem, 0, 0]);
+    .addBody([kExprI32Const, 0, kExprI32Const, 22, kExprI32Const, 55, kExprI32Add, kExprI32StoreMem, 0, 0]);
 
   builder.addStart(func.index);