Fix translator handling of basic block indices.

src/IceDefs.h

 //===- subzero/src/IceDefs.h - Common Subzero declarations ------*- C++ -*-===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 ///
 /// \file
@@ skipping 25 matching lines @@
 #include <cstdint>
 #include <cstdio>     // snprintf
 #include <functional> // std::less
 #include <limits>
 #include <list>
 #include <map>
 #include <memory>
 #include <mutex>
 #include <string>
 #include <system_error>
+#include <unordered_map>
 #include <vector>
 
 namespace Ice {
 
 class Assembler;
 class Cfg;
 class CfgNode;
 class Constant;
 class ELFObjectWriter;
 class ELFStreamer;
@@ skipping 214 matching lines @@
 llvm::iterator_range<typename T::reverse_iterator> reverse_range(T &Container) {
   return llvm::make_range(Container.rbegin(), Container.rend());
 }
 
 /// Options for pooling and randomization of immediates.
 enum RandomizeAndPoolImmediatesEnum { RPI_None, RPI_Randomize, RPI_Pool };
 
 } // end of namespace Ice
 
 #endif // SUBZERO_SRC_ICEDEFS_H