Refactor all instances of `typedef y x` to the C++11 `using x = y` syntax.

src/PNaClTranslator.cpp

 //===- subzero/src/PNaClTranslator.cpp - ICE from bitcode -----------------===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 ///
 /// \file
@@ skipping 927 matching lines @@
         NumFunctionIDs(Context->getNumFunctionIDs()),
         DummyGlobalVar(
             Ice::VariableDeclaration::create(getTranslator().getContext())),
         CurGlobalVar(DummyGlobalVar) {}
 
   ~GlobalsParser() final = default;
 
   const char *getBlockName() const override { return "globals"; }
 
 private:
-  typedef std::unordered_map<NaClBcIndexSize_t, Ice::VariableDeclaration *>
-      GlobalVarsMapType;
+  using GlobalVarsMapType =
+      std::unordered_map<NaClBcIndexSize_t, Ice::VariableDeclaration *>;
 
   Ice::TimerMarker Timer;
 
   // Holds global variables generated/referenced in the global variables block.
   GlobalVarsMapType GlobalVarsMap;
 
   // Holds the number of defined function IDs.
   NaClBcIndexSize_t NumFunctionIDs;
 
   // Holds the specified number of global variables by the count record in
@@ skipping 191 matching lines @@
 
 public:
   ValuesymtabParser(unsigned BlockID, BlockParserBaseClass *EnclosingParser)
       : BlockParserBaseClass(BlockID, EnclosingParser) {}
 
   ~ValuesymtabParser() override = default;
 
   const char *getBlockName() const override { return "valuesymtab"; }
 
 protected:
-  typedef SmallString<128> StringType;
+  using StringType = SmallString<128>;
 
   // Associates Name with the value defined by the given Index.
   virtual void setValueName(NaClBcIndexSize_t Index, StringType &Name) = 0;
 
   // Associates Name with the value defined by the given Index;
   virtual void setBbName(NaClBcIndexSize_t Index, StringType &Name) = 0;
 
 private:
   void ProcessRecord() override;
 
@@ skipping 1999 matching lines @@
   }
   if (InputStreamFile.getBitcodeBytes().getExtent() % 4 != 0) {
     ErrStream
         << IRFilename
         << ": Bitcode stream should be a multiple of 4 bytes in length.\n";
     llvm::report_fatal_error("Bitcode stream should be a multiple of 4 bytes");
   }
 }
 
 } // end of namespace Ice