Fix a bug that would cause subzero to fail when --threads=0.

src/IceTranslator.h

 //===- subzero/src/IceTranslator.h - ICE to machine code --------*- C++ -*-===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
 // This file declares the general driver class for translating ICE to
@@ skipping 30 matching lines @@
   const ErrorCode &getErrorStatus() const { return ErrorStatus; }
 
   GlobalContext *getContext() const { return Ctx; }
 
   const ClFlags &getFlags() const { return Ctx->getFlags(); }
 
   /// Translates the constructed ICE function Fcn to machine code.
   /// Takes ownership of Func.
   void translateFcn(std::unique_ptr<Cfg> Func);
 
-  /// Emits the constant pool.
-  void emitConstants();
-
-  /// If there was an error during bitcode reading/parsing, copy the
-  /// error code into the GlobalContext.
-  void transferErrorCode() const;
-
   /// Lowers the given list of global addresses to target. Generates
   /// list of corresponding variable declarations.
   void
   lowerGlobals(std::unique_ptr<VariableDeclarationList> VariableDeclarations);
 
   /// Creates a name using the given prefix and corresponding index.
   std::string createUnnamedName(const IceString &Prefix, SizeT Index);
 
   /// Reports if there is a (potential) conflict between Name, and using
   /// Prefix to name unnamed names. Errors are put on Ostream.
   /// Returns true if there isn't a potential conflict.
   bool checkIfUnnamedNameSafe(const IceString &Name, const char *Kind,
                               const IceString &Prefix);
 
   uint32_t getNextSequenceNumber() { return NextSequenceNumber++; }
 
 protected:
   GlobalContext *Ctx;
   uint32_t NextSequenceNumber;
   // ErrorCode of the translation.
   ErrorCode ErrorStatus;
 };
 
 } // end of namespace Ice
 
 #endif // SUBZERO_SRC_ICETRANSLATOR_H