Subzero: Make Ice::Ostream a typedef for llvm::raw_ostream.

src/IceTypes.h

Index: src/IceTypes.h
diff --git a/src/IceTypes.h b/src/IceTypes.h
index 6bc2ded5ec63f8d9d388eef2cd14426a7a6b8928..fa917636583abde7e91cb51b725e15bd9488f901 100644
--- a/src/IceTypes.h
+++ b/src/IceTypes.h
@@ -45,10 +45,15 @@ size_t typeWidthInBytes(Type Ty);
 size_t typeAlignInBytes(Type Ty);
 size_t typeNumElements(Type Ty);
 Type typeElementType(Type Ty);
+const char *typeString(Type Ty);
 
 inline bool isVectorType(Type Ty) { return typeNumElements(Ty) > 1; }
 
-template <> Ostream &operator<<(class Ostream &Str, const Type &Ty);
+template <typename StreamType>
+inline StreamType &operator<<(StreamType &Str, const Type &Ty) {
+  Str << typeString(Ty);
+  return Str;
+}
 
 } // end of namespace Ice