[libc++] Build <filesystem> support as part of the dylib

Summary:
This patch treats <filesystem> as a first-class citizen of the dylib,
like all other sub-libraries (e.g. <chrono>). As such, it also removes
all special handling for installing the filesystem library separately
or disabling part of the test suite from the lit command line.

Reviewers: mclow.lists, EricWF, serge-sans-paille

Subscribers: mgorny, christof, jkorous, dexonsmith, jfb, jdoerfert, libcxx-commits

Differential Revision: https://reviews.llvm.org/D59152

llvm-svn: 356500

1 files changed, 0 insertions, 29 deletions

diff --git a/libcxx/test/std/input.output/filesystems/class.path/path.member/path.decompose/empty.fail.cpp b/libcxx/test/std/input.output/filesystems/class.path/path.member/path.decompose/empty.fail.cpp
deleted file mode 100644
index 5248f67515a..00000000000
--- a/libcxx/test/std/input.output/filesystems/class.path/path.member/path.decompose/empty.fail.cpp
+++ /dev/null
@@ -1,29 +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
-//
-//===----------------------------------------------------------------------===//
-
-// <filesystem>
-
-// class path
-
-// bool empty() const noexcept;
-
-// UNSUPPORTED: c++98, c++03, c++11, c++14, c++17
-// UNSUPPORTED: clang-3.3, clang-3.4, clang-3.5, clang-3.6, clang-3.7, clang-3.8
-
-#include "filesystem_include.hpp"
-
-#include "test_macros.h"
-
-int main(int, char**)
-{
-    fs::path c;
-    c.empty();  // expected-error {{ignoring return value of function declared with 'nodiscard' attribute}}
-
-  return 0;
-}