[wasm] Implement I32x4ReplaceLane, I32x4Add, I32x4Sub.

src/compiler/wasm-compiler.h

Index: src/compiler/wasm-compiler.h
diff --git a/src/compiler/wasm-compiler.h b/src/compiler/wasm-compiler.h
index b4fba2bb863086a203bff01c749513c6a57a71b0..2f453a855622a5d494e96f3e33e48bcb8aa52ad3 100644
--- a/src/compiler/wasm-compiler.h
+++ b/src/compiler/wasm-compiler.h
@@ -217,9 +217,9 @@ class WasmGraphBuilder {
   Node* CreateS128Value(int32_t value);
 
   Node* SimdOp(wasm::WasmOpcode opcode, const NodeVector& inputs);
-  Node* SimdExtractLane(wasm::WasmOpcode opcode, uint8_t lane, Node* input);
-  Node* SimdReplaceLane(wasm::WasmOpcode opcode, uint8_t lane, Node* input,
-                        Node* replacement);
+
+  Node* SimdLaneOp(wasm::WasmOpcode opcode, uint8_t lane,
+                   const NodeVector& inputs);
 
  private:
   static const int kDefaultBufferSize = 16;