Fix translator handling of basic block indices.

src/IceTargetLoweringX86Base.h

 //===- subzero/src/IceTargetLoweringX86Base.h - x86 lowering ----*- C++ -*-===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 ///
 /// \file
 /// This file declares the TargetLoweringX86 template class, which
 /// implements the TargetLowering base interface for the x86
 /// architecture.
 ///
 //===----------------------------------------------------------------------===//
 
 #ifndef SUBZERO_SRC_ICETARGETLOWERINGX86BASE_H
 #define SUBZERO_SRC_ICETARGETLOWERINGX86BASE_H
 
 #include "IceDefs.h"
 #include "IceInst.h"
 #include "IceSwitchLowering.h"
 #include "IceTargetLowering.h"
 
 #include <type_traits>
-#include <unordered_map>
 #include <utility>
 
 namespace Ice {
 namespace X86Internal {
 
 template <class MachineTraits> class BoolFolding;
 
 template <class Machine> struct MachineTraits {};
 
 /// TargetX86Base is a template for all X86 Targets, and it relies on the CRT
@@ skipping 617 matching lines @@
   }
 
   BoolFolding FoldingInfo;
 };
 } // end of namespace X86Internal
 } // end of namespace Ice
 
 #include "IceTargetLoweringX86BaseImpl.h"
 
 #endif // SUBZERO_SRC_ICETARGETLOWERINGX86BASE_H