[libc++] Revert r363692 which implements P0608R3

The change caused a large number of compiler failures in
Google's codebase.  People need time to evaluate the impact.

llvm-svn: 363764

1 files changed, 0 insertions, 52 deletions

diff --git a/libcxx/test/std/utilities/variant/variant.variant/variant.assign/conv.fail.cpp b/libcxx/test/std/utilities/variant/variant.variant/variant.assign/conv.fail.cpp
deleted file mode 100644
index d5f370d2720..00000000000
--- a/libcxx/test/std/utilities/variant/variant.variant/variant.assign/conv.fail.cpp
+++ /dev/null
@@ -1,52 +0,0 @@
-// -*- C++ -*-
-//===----------------------------------------------------------------------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-
-// UNSUPPORTED: c++98, c++03, c++11, c++14
-
-// <variant>
-
-// template <class ...Types> class variant;
-
-// template <class T>
-// variant& operator=(T&&) noexcept(see below);
-
-#include <variant>
-#include <string>
-#include <memory>
-
-int main(int, char**)
-{
-  std::variant<int, int> v1;
-  std::variant<long, long long> v2;
-  std::variant<char> v3;
-  v1 = 1; // expected-error {{no viable overloaded '='}}
-  v2 = 1; // expected-error {{no viable overloaded '='}}
-  v3 = 1; // expected-error {{no viable overloaded '='}}
-
-  std::variant<std::string, float> v4;
-  std::variant<std::string, double> v5;
-  std::variant<std::string, bool> v6;
-  v4 = 1; // expected-error {{no viable overloaded '='}}
-  v5 = 1; // expected-error {{no viable overloaded '='}}
-  v6 = 1; // expected-error {{no viable overloaded '='}}
-
-  std::variant<int, bool> v7;
-  std::variant<int, bool const> v8;
-  std::variant<int, bool volatile> v9;
-  v7 = "meow"; // expected-error {{no viable overloaded '='}}
-  v8 = "meow"; // expected-error {{no viable overloaded '='}}
-  v9 = "meow"; // expected-error {{no viable overloaded '='}}
-
-  std::variant<bool> v10;
-  std::variant<bool> v11;
-  std::variant<bool> v12;
-  v10 = std::true_type(); // expected-error {{no viable overloaded '='}}
-  v11 = std::unique_ptr<char>(); // expected-error {{no viable overloaded '='}}
-  v12 = nullptr; // expected-error {{no viable overloaded '='}}
-}