Simplify creation of a bunch of ArrayRefs by using None, makeArrayRef or just letting them be implicitly created.

llvm-svn: 216525
diff --git a/llvm/lib/Object/COFFObjectFile.cpp b/llvm/lib/Object/COFFObjectFile.cpp
index 0c2ec11..94e5b1e 100644
--- a/llvm/lib/Object/COFFObjectFile.cpp
+++ b/llvm/lib/Object/COFFObjectFile.cpp
@@ -783,8 +783,7 @@
          == 0 && "Aux Symbol data did not point to the beginning of a symbol");
 # endif
   }
-  return ArrayRef<uint8_t>(Aux,
-                           Symbol->NumberOfAuxSymbols * sizeof(coff_symbol));
+  return makeArrayRef(Aux, Symbol->NumberOfAuxSymbols * sizeof(coff_symbol));
 }
 
 std::error_code COFFObjectFile::getSectionName(const coff_section *Sec,
@@ -825,8 +824,8 @@
   uintptr_t ConEnd = ConStart + Sec->SizeOfRawData;
   if (ConEnd > uintptr_t(Data.getBufferEnd()))
     return object_error::parse_failed;
-  Res = ArrayRef<uint8_t>(reinterpret_cast<const unsigned char*>(ConStart),
-                          Sec->SizeOfRawData);
+  Res = makeArrayRef(reinterpret_cast<const uint8_t*>(ConStart),
+                     Sec->SizeOfRawData);
   return object_error::success;
 }