[libc++] Remove the c++98 Lit feature from the test suite

C++98 and C++03 are effectively aliases as far as Clang is concerned.
As such, allowing both std=c++98 and std=c++03 as Lit parameters is
just slightly confusing, but provides no value. It's similar to allowing
both std=c++17 and std=c++1z, which we don't do.

This was discovered because we had an internal bot that ran the test
suite under both c++98 AND c++03 -- one of which is redundant.

Differential Revision: https://reviews.llvm.org/D80926

Author: ldionne

libcxx/docs/TestingLibcxx.rst

@@ -18,7 +18,7 @@
 //                    RandomNumberGenerator& rand);
 
 // UNSUPPORTED: clang-4.0
-// UNSUPPORTED: c++98, c++03, c++11
+// UNSUPPORTED: c++03, c++11
 
 // ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_ENABLE_CXX17_REMOVED_RANDOM_SHUFFLE
 

libcxx/test/libcxx/algorithms/alg.modifying.operations/alg.random.shuffle/random_shuffle.depr_in_cxx14.verify.cpp

@@ -6,7 +6,7 @@
 //
 //===----------------------------------------------------------------------===//
 //
-// UNSUPPORTED: libcpp-has-no-threads, c++98, c++03
+// UNSUPPORTED: libcpp-has-no-threads, c++03
 // REQUIRES: libatomic
 // FILE_DEPENDENCIES: %t.exe
 // RUN: %{build} -latomic

libcxx/test/libcxx/atomics/atomics.align/align.pass.sh.cpp

@@ -6,7 +6,7 @@
 //
 //===----------------------------------------------------------------------===//
 
-// UNSUPPORTED: c++98, c++03
+// UNSUPPORTED: c++03
 
 // Test that libc++ does not generate a warning diagnostic about the comparator
 // too early for containers of incomplete types.

libcxx/test/libcxx/containers/associative/non_const_comparator.incomplete.verify.cpp

@@ -6,7 +6,7 @@
 //
 //===----------------------------------------------------------------------===//
 
-// UNSUPPORTED: c++98, c++03
+// UNSUPPORTED: c++03
 // REQUIRES: diagnose-if-support
 
 // Test that libc++ generates a warning diagnostic when the container is

libcxx/test/libcxx/containers/associative/non_const_comparator.verify.cpp

@@ -5,7 +5,7 @@
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
-// UNSUPPORTED: c++98, c++03
+// UNSUPPORTED: c++03
 // UNSUPPORTED: windows
 
 // ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DEBUG=1

libcxx/test/libcxx/containers/sequences/array/array.zero/db_back.pass.cpp

@@ -5,7 +5,7 @@
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
-// UNSUPPORTED: c++98, c++03
+// UNSUPPORTED: c++03
 // UNSUPPORTED: windows
 
 // ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DEBUG=1

libcxx/test/libcxx/containers/sequences/array/array.zero/db_front.pass.cpp

@@ -5,7 +5,7 @@
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
-// UNSUPPORTED: c++98, c++03
+// UNSUPPORTED: c++03
 // UNSUPPORTED: windows
 
 // ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DEBUG=1

libcxx/test/libcxx/containers/sequences/array/array.zero/db_indexing.pass.cpp

@@ -6,7 +6,7 @@
 //
 //===----------------------------------------------------------------------===//
 
-// UNSUPPORTED: c++98, c++03
+// UNSUPPORTED: c++03
 
 // <deque>
 

libcxx/test/libcxx/containers/sequences/deque/spare_block_handling.pass.cpp

@@ -6,7 +6,7 @@
 //
 //===----------------------------------------------------------------------===//
 
-// UNSUPPORTED: c++98, c++03
+// UNSUPPORTED: c++03
 
 // Can't test the system lib because this test enables debug mode
 // UNSUPPORTED: with_system_cxx_lib=macosx

libcxx/test/libcxx/containers/sequences/list/list.cons/db_move.pass.cpp

@@ -6,7 +6,7 @@
 //
 //===----------------------------------------------------------------------===//
 
-// UNSUPPORTED: c++98, c++03
+// UNSUPPORTED: c++03
 
 // Can't test the system lib because this test enables debug mode
 // UNSUPPORTED: with_system_cxx_lib=macosx

libcxx/test/libcxx/containers/sequences/list/list.modifiers/emplace_db1.pass.cpp

@@ -24,7 +24,7 @@
 //       destructor, or
 //     * all of its copy and move constructors are deleted.
 
-// UNSUPPORTED: c++98, c++03
+// UNSUPPORTED: c++03
 
 #include <vector>
 #include <cassert>

libcxx/test/libcxx/containers/sequences/vector.bool/trivial_for_purposes_of_call.pass.cpp

@@ -6,7 +6,7 @@
 //
 //===----------------------------------------------------------------------===//
 
-// UNSUPPORTED: c++98, c++03
+// UNSUPPORTED: c++03
 
 // <vector>
 

libcxx/test/libcxx/containers/sequences/vector/const_value_type.pass.cpp

@@ -8,7 +8,7 @@
 
 // ADDITIONAL_COMPILE_FLAGS: -fno-exceptions
 
-// UNSUPPORTED: c++98, c++03
+// UNSUPPORTED: c++03
 
 // <vector>
 

libcxx/test/libcxx/containers/sequences/vector/exception_safety_exceptions_disabled.pass.cpp

@@ -7,7 +7,7 @@
 //===----------------------------------------------------------------------===//
 //
 // REQUIRES: long_tests
-// UNSUPPORTED: c++98, c++03
+// UNSUPPORTED: c++03
 
 // Not a portable test
 

libcxx/test/libcxx/containers/unord/next_pow2.pass.cpp

@@ -6,7 +6,7 @@
 //
 //===----------------------------------------------------------------------===//
 
-// UNSUPPORTED: c++98, c++03
+// UNSUPPORTED: c++03
 
 // Test that libc++ does not generate a warning diagnostic about the comparator
 // or the hasher too early for containers of incomplete types.

libcxx/test/libcxx/containers/unord/non_const_comparator.incomplete.verify.cpp

@@ -6,7 +6,7 @@
 //
 //===----------------------------------------------------------------------===//
 
-// UNSUPPORTED: c++98, c++03
+// UNSUPPORTED: c++03
 // REQUIRES: diagnose-if-support
 
 // Test that libc++ generates a warning diagnostic when the container is

libcxx/test/libcxx/containers/unord/non_const_comparator.verify.cpp

@@ -16,7 +16,7 @@
 // is not in the map.
 
 // REQUIRES: no-exceptions
-// UNSUPPORTED: c++98, c++03
+// UNSUPPORTED: c++03
 
 #include <csignal>
 #include <cstdlib>

libcxx/test/libcxx/containers/unord/unord.map/at.abort.pass.cpp

@@ -16,7 +16,7 @@
 // is not in the map.
 
 // REQUIRES: no-exceptions
-// UNSUPPORTED: c++98, c++03
+// UNSUPPORTED: c++03
 
 #include <csignal>
 #include <cstdlib>

libcxx/test/libcxx/containers/unord/unord.map/at.const.abort.pass.cpp

@@ -7,7 +7,7 @@
 //===----------------------------------------------------------------------===//
 
 // REQUIRES: diagnose-if-support
-// UNSUPPORTED: c++98, c++03
+// UNSUPPORTED: c++03
 
 // Libc++ only provides a defined primary template for std::hash in C++14 and
 // newer.

libcxx/test/libcxx/containers/unord/unord.set/missing_hash_specialization.fail.cpp

@@ -6,7 +6,7 @@
 //
 //===----------------------------------------------------------------------===//
 
-// UNSUPPORTED: c++98, c++03, c++11, c++14
+// UNSUPPORTED: c++03, c++11, c++14
 // UNSUPPORTED: windows
 // UNSUPPORTED: libcpp-no-if-constexpr
 // ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DEBUG=1

libcxx/test/libcxx/debug/containers/db_associative_container_tests.pass.cpp

@@ -6,7 +6,7 @@
 //
 //===----------------------------------------------------------------------===//
 
-// UNSUPPORTED: c++98, c++03, c++11, c++14
+// UNSUPPORTED: c++03, c++11, c++14
 // UNSUPPORTED: windows
 // UNSUPPORTED: libcpp-has-no-threads
 // ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DEBUG=1

libcxx/test/libcxx/debug/containers/db_sequence_container_iterators.multithread.pass.cpp

@@ -6,7 +6,7 @@
 //
 //===----------------------------------------------------------------------===//
 
-// UNSUPPORTED: c++98, c++03, c++11, c++14
+// UNSUPPORTED: c++03, c++11, c++14
 // UNSUPPORTED: windows
 // UNSUPPORTED: libcpp-no-if-constexpr
 // ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DEBUG=1

libcxx/test/libcxx/debug/containers/db_sequence_container_iterators.pass.cpp

@@ -6,7 +6,7 @@
 //
 //===----------------------------------------------------------------------===//
 
-// UNSUPPORTED: c++98, c++03, c++11, c++14
+// UNSUPPORTED: c++03, c++11, c++14
 // UNSUPPORTED: windows
 // UNSUPPORTED: libcpp-no-if-constexpr
 // ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DEBUG=1

libcxx/test/libcxx/debug/containers/db_string.pass.cpp

@@ -6,7 +6,7 @@
 //
 //===----------------------------------------------------------------------===//
 
-// UNSUPPORTED: c++98, c++03, c++11, c++14
+// UNSUPPORTED: c++03, c++11, c++14
 // UNSUPPORTED: windows
 // UNSUPPORTED: libcpp-no-if-constexpr
 // ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DEBUG=1

libcxx/test/libcxx/debug/containers/db_unord_container_tests.pass.cpp

@@ -6,7 +6,7 @@
 //
 //===----------------------------------------------------------------------===//
 
-// UNSUPPORTED: c++98, c++03, c++11, c++14
+// UNSUPPORTED: c++03, c++11, c++14
 // UNSUPPORTED: windows
 // UNSUPPORTED: libcpp-no-if-constexpr
 // ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DEBUG=1

libcxx/test/libcxx/debug/db_string_view.pass.cpp

@@ -7,7 +7,7 @@
 //
 //===----------------------------------------------------------------------===//
 
-// UNSUPPORTED: c++98, c++03
+// UNSUPPORTED: c++03
 // UNSUPPORTED: windows
 
 // Can't test the system lib because this test enables debug mode

libcxx/test/libcxx/debug/debug_helper_test.pass.cpp

@@ -19,7 +19,7 @@
 // Deprecated in C++11
 
 // UNSUPPORTED: clang-4.0
-// UNSUPPORTED: c++98, c++03
+// UNSUPPORTED: c++03
 
 // ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_ENABLE_CXX17_REMOVED_AUTO_PTR
 

libcxx/test/libcxx/depr/depr.auto.ptr/auto.ptr/auto_ptr.depr_in_cxx11.verify.cpp

@@ -6,7 +6,7 @@
 //
 //===----------------------------------------------------------------------===//
 
-// UNSUPPORTED: c++98 || c++03
+// UNSUPPORTED: c++03
 
 #include <cstdio>
 

libcxx/test/libcxx/depr/depr.c.headers/no_fgetpos_fsetpos.verify.cpp

@@ -14,7 +14,7 @@
 
 // Deprecated in C++17
 
-// UNSUPPORTED: c++98, c++03, c++11, c++14
+// UNSUPPORTED: c++03, c++11, c++14
 
 // ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_ENABLE_CXX20_REMOVED_ALLOCATOR_MEMBERS
 

libcxx/test/libcxx/depr/depr.default.allocator/allocator.members/address.depr_in_cxx17.verify.cpp

@@ -6,7 +6,7 @@
 //
 //===----------------------------------------------------------------------===//
 
-// UNSUPPORTED: c++98, c++03, c++11, c++14, c++17
+// UNSUPPORTED: c++03, c++11, c++14, c++17
 
 // <memory>
 

libcxx/test/libcxx/depr/depr.default.allocator/allocator.members/allocate.cxx2a.verify.cpp

@@ -13,7 +13,7 @@
 
 // Deprecated in C++17
 
-// UNSUPPORTED: c++98, c++03, c++11, c++14
+// UNSUPPORTED: c++03, c++11, c++14
 
 // ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_ENABLE_CXX20_REMOVED_ALLOCATOR_MEMBERS
 

libcxx/test/libcxx/depr/depr.default.allocator/allocator.members/allocate.depr_in_cxx17.verify.cpp

@@ -27,7 +27,7 @@
 
 // Deprecated in C++17
 
-// UNSUPPORTED: c++98, c++03, c++11, c++14
+// UNSUPPORTED: c++03, c++11, c++14
 
 // Clang 6 does not handle the deprecated attribute on template members properly,
 // so the rebind<int> check below fails.

libcxx/test/libcxx/depr/depr.default.allocator/allocator_types.depr_in_cxx17.verify.cpp

@@ -21,7 +21,7 @@
 //
 // Deprecated in C++17
 
-// UNSUPPORTED: c++98, c++03, c++11, c++14
+// UNSUPPORTED: c++03, c++11, c++14
 
 // ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_ENABLE_CXX20_REMOVED_ALLOCATOR_MEMBERS
 

libcxx/test/libcxx/depr/depr.default.allocator/allocator_void.depr_in_cxx17.verify.cpp

@@ -9,7 +9,7 @@
 // <functional>
 
 // UNSUPPORTED: clang-4.0
-// UNSUPPORTED: c++98, c++03
+// UNSUPPORTED: c++03
 
 // ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_ENABLE_CXX17_REMOVED_BINDERS
 

libcxx/test/libcxx/depr/depr.function.objects/adaptors.depr_in_cxx11.verify.cpp

@@ -6,7 +6,7 @@
 //
 //===----------------------------------------------------------------------===//
 
-// UNSUPPORTED: c++98, c++03, c++11, c++14
+// UNSUPPORTED: c++03, c++11, c++14
 
 // test unexpected
 

libcxx/test/libcxx/depr/exception.unexpected/unexpected_disabled_cpp17.fail.cpp

@@ -11,7 +11,7 @@
 // to the appropriate warning-generating attribute when _LIBCPP_ENABLE_NODISCARD
 // is explicitly provided.
 
-// UNSUPPORTED: c++98, c++03
+// UNSUPPORTED: c++03
 
 // GCC 7 is the first version to introduce [[nodiscard]]
 // UNSUPPORTED: gcc-5, gcc-6

libcxx/test/libcxx/diagnostics/enable_nodiscard.verify.cpp

@@ -7,7 +7,7 @@
 //
 //===----------------------------------------------------------------------===//
 
-// UNSUPPORTED: c++98, c++03
+// UNSUPPORTED: c++03
 
 // GCC 7 is the first version to introduce [[nodiscard]]
 // UNSUPPORTED: gcc-5, gcc-6

libcxx/test/libcxx/diagnostics/enable_nodiscard_disable_after_cxx17.verify.cpp

@@ -7,7 +7,7 @@
 //
 //===----------------------------------------------------------------------===//
 
-// UNSUPPORTED: c++98, c++03
+// UNSUPPORTED: c++03
 
 // GCC 7 is the first version to introduce [[nodiscard]]
 // UNSUPPORTED: gcc-5, gcc-6

libcxx/test/libcxx/diagnostics/enable_nodiscard_disable_nodiscard_ext.verify.cpp

@@ -10,7 +10,7 @@
 // Test that _LIBCPP_NODISCARD_AFTER_CXX17 works
 //	#define _LIBCPP_NODISCARD_AFTER_CXX17 [[nodiscard]]
 
-// UNSUPPORTED: c++98, c++03, c++11, c++14, c++17
+// UNSUPPORTED: c++03, c++11, c++14, c++17
 
 #include <__config>
 

libcxx/test/libcxx/diagnostics/nodiscard_aftercxx17.verify.cpp

@@ -7,7 +7,7 @@
 //
 //===----------------------------------------------------------------------===//
 
-// UNSUPPORTED: c++98, c++03
+// UNSUPPORTED: c++03
 
 // AppleClang9 doesn't yet support C++17's implicitly synthesized deduction
 // guides from existing ctors, needed by default_searcher() below.

libcxx/test/libcxx/diagnostics/nodiscard_extensions.verify.cpp

@@ -6,7 +6,7 @@
 //
 //===----------------------------------------------------------------------===//
 
-// UNSUPPORTED: c++98, c++03
+// UNSUPPORTED: c++03
 
 // <experimental/filesystem>
 

libcxx/test/libcxx/experimental/filesystem/deprecated.verify.cpp

@@ -7,7 +7,7 @@
 //
 //===----------------------------------------------------------------------===//
 
-// UNSUPPORTED: c++98, c++03, c++11
+// UNSUPPORTED: c++03, c++11
 // REQUIRES: fcoroutines-ts
 // ADDITIONAL_COMPILE_FLAGS: -fcoroutines-ts
 

libcxx/test/libcxx/experimental/language.support/support.coroutines/version.pass.cpp

@@ -6,7 +6,7 @@
 //
 //===----------------------------------------------------------------------===//
 
-// UNSUPPORTED: c++98, c++03
+// UNSUPPORTED: c++03
 
 // <experimental/memory_resource>