[llvm] [NFC][LLVM] Use ListSeparator in AsmWriter (PR #161422)

[Rahul Joshi via llvm-commits]

================
@@ -1848,13 +1831,13 @@ static void WriteConstantInternal(raw_ostream &Out, const Constant *CV,
       Out << ", ";
     }
 
+    ListSeparator LS;
     for (User::const_op_iterator OI = CE->op_begin(); OI != CE->op_end();
----------------
jurahul wrote:

Done

https://github.com/llvm/llvm-project/pull/161422