[wasm] Implement I32x4ReplaceLane, I32x4Add, I32x4Sub.

src/compiler/common-operator.h

Index: src/compiler/common-operator.h
diff --git a/src/compiler/common-operator.h b/src/compiler/common-operator.h
index 1f258a0ec0fa95dce529d8c857e6d275f104907e..c1bb20e9ab0a39e7a064206b96ff594c50f22f80 100644
--- a/src/compiler/common-operator.h
+++ b/src/compiler/common-operator.h
@@ -260,6 +260,11 @@ class V8_EXPORT_PRIVATE CommonOperatorBuilder final
   // with {size} inputs.
   const Operator* ResizeMergeOrPhi(const Operator* op, int size);
 
+  // Simd Operators
+  const Operator* Int32x4ExtractLane(int32_t);
+  const Operator* Int32x4ReplaceLane(int32_t);
+  const Operator* Float32x4ExtractLane(int32_t);
+
   // Constructs function info for frame state construction.
   const FrameStateFunctionInfo* CreateFrameStateFunctionInfo(
       FrameStateType type, int parameter_count, int local_count,