[strong] Fix inlining issue

src/ia32/lithium-ia32.h

Index: src/ia32/lithium-ia32.h
diff --git a/src/ia32/lithium-ia32.h b/src/ia32/lithium-ia32.h
index d64d3626d54dbd5524e86e623fb2ede1f79646b1..4d245ecb5081a356386da420d48b235007747532 100644
--- a/src/ia32/lithium-ia32.h
+++ b/src/ia32/lithium-ia32.h
@@ -1551,12 +1551,15 @@ class LArithmeticT final : public LTemplateInstruction<1, 3, 0> {
   LOperand* context() { return inputs_[0]; }
   LOperand* left() { return inputs_[1]; }
   LOperand* right() { return inputs_[2]; }
+  Token::Value op() const { return op_; }
 
   Opcode opcode() const override { return LInstruction::kArithmeticT; }
   void CompileToNative(LCodeGen* generator) override;
   const char* Mnemonic() const override;
 
-  Token::Value op() const { return op_; }
+  DECLARE_HYDROGEN_ACCESSOR(BinaryOperation)
+
+  LanguageMode language_mode() { return hydrogen()->language_mode(); }
 
  private:
   Token::Value op_;