Make the constructor explicit.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107265 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/clang/AST/DeclFriend.h b/include/clang/AST/DeclFriend.h
index 85085c3080b5e723c7733ebdccf1b8e31bd646b4..2807d16379ae9cc9473151921a01aae6accc014b 100644 (file)
--- a/include/clang/AST/DeclFriend.h
+++ b/include/clang/AST/DeclFriend.h
@@ -59,7 +59,8 @@ private:
       FriendLoc(FriendL) {
   }
 
-  FriendDecl(EmptyShell Empty) : Decl(Decl::Friend, Empty), NextFriend(0) { }
+  explicit FriendDecl(EmptyShell Empty)
+    : Decl(Decl::Friend, Empty), NextFriend(0) { }
 
 public:
   static FriendDecl *Create(ASTContext &C, DeclContext *DC,