Imported Upstream version 5.18.0.234

Former-commit-id: 8071ec1a8c5eaa9be24b41745add19297608001f

external/llvm/unittests/ADT/FunctionRefTest.cpp

@@ -1,42 +0,0 @@
-//===- llvm/unittest/ADT/MakeUniqueTest.cpp - make_unique unit tests ------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/ADT/STLExtras.h"
-#include "gtest/gtest.h"
-
-using namespace llvm;
-
-namespace {
-
-// Ensure that there is a default constructor and we can test for a null
-// function_ref.
-TEST(FunctionRefTest, Null) {
-  function_ref<int()> F;
-  EXPECT_FALSE(F);
-
-  auto L = [] { return 1; };
-  F = L;
-  EXPECT_TRUE(F);
-
-  F = {};
-  EXPECT_FALSE(F);
-}
-
-// Ensure that copies of a function_ref copy the underlying state rather than
-// causing one function_ref to chain to the next.
-TEST(FunctionRefTest, Copy) {
-  auto A = [] { return 1; };
-  auto B = [] { return 2; };
-  function_ref<int()> X = A;
-  function_ref<int()> Y = X;
-  X = B;
-  EXPECT_EQ(1, Y());
-}
-
-}