From 90f6d0dfcd9fb9024d73d3cf6708daa410b39c53 Mon Sep 17 00:00:00 2001
From: Justin Lebar <jlebar@google.com>
Date: Mon, 10 Feb 2020 19:38:44 -0800
Subject: [PATCH] Fix SFINAE in JSON.h constructor.

Summary:
This used std::enable_if without referencing ::type.  Changed to use
std::enable_if_t.

Subscribers: llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D74381
---
 include/llvm/Support/JSON.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/llvm/Support/JSON.h b/include/llvm/Support/JSON.h
index f0bab51ad4d..ad746b62c2a 100644
--- a/include/llvm/Support/JSON.h
+++ b/include/llvm/Support/JSON.h
@@ -354,7 +354,7 @@ public:
   }
   // Serializable types: with a toJSON(const T&)->Value function, found by ADL.
   template <typename T,
-            typename = typename std::enable_if<std::is_same<
+            typename = std::enable_if_t<std::is_same<
                 Value, decltype(toJSON(*(const T *)nullptr))>::value>,
             Value * = nullptr>
   Value(const T &V) : Value(toJSON(V)) {}