Subzero: Clean up a few areas.

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.
 //
 //===----------------------------------------------------------------------===//
 //
 // This file implements the PNaCl bitcode file to Ice, to machine code
@@ skipping 31 matching lines @@
     "allow-pnacl-reader-error-recovery",
     cl::desc("Allow error recovery when reading PNaCl bitcode."),
     cl::init(false));
 
 // Models elements in the list of types defined in the types block.
 // These elements can be undefined, a (simple) type, or a function type
 // signature. Note that an extended type is undefined on construction.
 // Use methods setAsSimpleType and setAsFuncSigType to define
 // the extended type.
 class ExtendedType {
-  // ExtendedType(const ExtendedType &Ty) = delete;
   ExtendedType &operator=(const ExtendedType &Ty) = delete;
 public:
   /// Discriminator for LLVM-style RTTI.
   enum TypeKind { Undefined, Simple, FuncSig };
 
   ExtendedType() : Kind(Undefined) {}
+  ExtendedType(const ExtendedType &Ty) = default;
 
   virtual ~ExtendedType() {}
 
   ExtendedType::TypeKind getKind() const { return Kind; }
   void dump(Ice::Ostream &Stream) const;
 
   /// Changes the extended type to a simple type with the given
   /// value.
   void setAsSimpleType(Ice::Type Ty) {
     assert(Kind == Undefined);
@@ skipping 2932 matching lines @@
 
   if (TopLevelBlocks != 1) {
     errs() << IRFilename
            << ": Contains more than one module. Found: " << TopLevelBlocks
            << "\n";
     ErrorStatus = true;
   }
 }
 
 } // end of namespace Ice