Update double-conversion and reapply NO_LINTs.

runtime/third_party/double-conversion/src/bignum.h

 // Copyright 2010 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 31 matching lines @@
   Bignum();
   void AssignUInt16(uint16_t value);
   void AssignUInt64(uint64_t value);
   void AssignBignum(const Bignum& other);
 
   void AssignDecimalString(Vector<const char> value);
   void AssignHexString(Vector<const char> value);
 
   void AssignPowerUInt16(uint16_t base, int exponent);
 
-  void AddUInt16(uint16_t operand);
   void AddUInt64(uint64_t operand);
   void AddBignum(const Bignum& other);
   // Precondition: this >= other.
   void SubtractBignum(const Bignum& other);
 
   void Square();
   void ShiftLeft(int shift_amount);
   void MultiplyByUInt32(uint32_t factor);
   void MultiplyByUInt64(uint64_t factor);
   void MultiplyByPowerOfTen(int exponent);
@@ skipping 73 matching lines @@
   int used_digits_;
   // The Bignum's value equals value(bigits_) * 2^(exponent_ * kBigitSize).
   int exponent_;
 
   DISALLOW_COPY_AND_ASSIGN(Bignum);
 };
 
 }  // namespace double_conversion
 
 #endif  // DOUBLE_CONVERSION_BIGNUM_H_