[strong] Fix inlining issue

src/mips64/lithium-mips64.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_MIPS_LITHIUM_MIPS_H_
 #define V8_MIPS_LITHIUM_MIPS_H_
 
 #include "src/hydrogen.h"
 #include "src/lithium.h"
 #include "src/lithium-allocator.h"
@@ skipping 1508 matching lines @@
 
   LOperand* context() { return inputs_[0]; }
   LOperand* left() { return inputs_[1]; }
   LOperand* right() { return inputs_[2]; }
   Token::Value op() const { return op_; }
 
   Opcode opcode() const final { return LInstruction::kArithmeticT; }
   void CompileToNative(LCodeGen* generator) override;
   const char* Mnemonic() const override;
 
+  DECLARE_HYDROGEN_ACCESSOR(BinaryOperation)
+
+  LanguageMode language_mode() { return hydrogen()->language_mode(); }
+
  private:
   Token::Value op_;
 };
 
 
 class LReturn final : public LTemplateInstruction<0, 3, 0> {
  public:
   LReturn(LOperand* value, LOperand* context, LOperand* parameter_count) {
     inputs_[0] = value;
     inputs_[1] = context;
@@ skipping 1270 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(LChunkBuilder);
 };
 
 #undef DECLARE_HYDROGEN_ACCESSOR
 #undef DECLARE_CONCRETE_INSTRUCTION
 
 } }  // namespace v8::internal
 
 #endif  // V8_MIPS_LITHIUM_MIPS_H_