[wasm] Add native x64 implementations for I32x4Splat, I32x4ExtractLane

src/wasm/wasm-opcodes.h

Index: src/wasm/wasm-opcodes.h
diff --git a/src/wasm/wasm-opcodes.h b/src/wasm/wasm-opcodes.h
index 4d66e567ef7e7aa18d09c1d44cff12d8d0791c11..1412587097e5bc0790d47c4d23c77fd35ce9be21 100644
--- a/src/wasm/wasm-opcodes.h
+++ b/src/wasm/wasm-opcodes.h
@@ -507,10 +507,10 @@ class WasmOpcodes {
         return kLocalF32;
       case kAstF64:
         return kLocalF64;
-      case kAstStmt:
-        return kLocalVoid;
       case kAstS128:
         return kLocalS128;
+      case kAstStmt:
+        return kLocalVoid;
       default:
         UNREACHABLE();
         return kLocalVoid;