gccrs: Remove Rust::Optional in favor of tl::optional

gcc/rust/ChangeLog:

	* Make-lang.in: Remove rust-optional-test.cc's object file
	* ast/rust-macro.h: Remove use of Rust::Optional
	* backend/rust-compile-base.cc
	(HIRCompileBase::resolve_method_address): Likewise.
	* checks/errors/privacy/rust-privacy-reporter.cc
	(PrivacyReporter::check_for_privacy_violation): Likewise.
	(PrivacyReporter::visit): Likewise.
	* checks/errors/privacy/rust-privacy-reporter.h: Likewise.
	* checks/errors/rust-feature-gate.cc (FeatureGate::check): Likewise.
	* checks/errors/rust-feature.cc (Feature::create): Likewise.
	(Feature::as_name): Likewise.
	* checks/errors/rust-feature.h: Likewise.
	* expand/rust-macro-builtins.cc: Likewise.
	* lex/rust-lex.cc (Lexer::Lexer): Likewise.
	(Lexer::skip_token): Likewise.
	(Lexer::dump_and_skip): Likewise.
	* lex/rust-lex.h: Likewise.
	* resolve/rust-ast-resolve-path.cc (ResolvePath::resolve_path): Likewise.
	* resolve/rust-ast-resolve-type.cc (ResolveRelativeTypePath::go): Likewise.
	* rust-lang.cc (run_rust_tests): Likewise.
	* rust-session-manager.cc (Session::compile_crate): Likewise.
	(TargetOptions::dump_target_options): Likewise.
	* rust-session-manager.h (struct TargetOptions): Likewise.
	* util/rust-hir-map.cc (Mappings::lookup_module_children): Likewise.
	(Mappings::lookup_module_chidren_items): Likewise.
	(Mappings::lookup_module_child): Likewise.
	(Mappings::lookup_parent_module): Likewise.
	* util/rust-hir-map.h (RUST_HIR_MAP_H): Likewise.
	* util/rust-optional-test.cc: Removed.
	* util/rust-optional.h: Removed.

1 files changed, 0 insertions, 110 deletions

diff --git a/gcc/rust/util/rust-optional-test.cc b/gcc/rust/util/rust-optional-test.cc
deleted file mode 100644
index 9fbbe7d..0000000
--- a/gcc/rust/util/rust-optional-test.cc
+++ /dev/null
@@ -1,110 +0,0 @@
-// Copyright (C) 2020-2023 Free Software Foundation, Inc.
-
-// This file is part of GCC.
-
-// GCC is free software; you can redistribute it and/or modify it under
-// the terms of the GNU General Public License as published by the Free
-// Software Foundation; either version 3, or (at your option) any later
-// version.
-
-// GCC is distributed in the hope that it will be useful, but WITHOUT ANY
-// WARRANTY; without even the implied warranty of MERCHANTABILITY or
-// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-// for more details.
-
-// You should have received a copy of the GNU General Public License
-// along with GCC; see the file COPYING3.  If not see
-// <http://www.gnu.org/licenses/>.
-
-#include "rust-system.h"
-#include "rust-optional.h"
-#include "selftest.h"
-
-#if CHECKING_P
-
-static void
-rust_optional_create ()
-{
-  auto opt = Rust::Optional<int>::some (15);
-
-  ASSERT_TRUE (opt.is_some ());
-  ASSERT_EQ (opt.get (), 15);
-
-  Rust::Optional<int> const_opt = Rust::Optional<int>::some (15);
-  const int &value = const_opt.get ();
-
-  ASSERT_EQ (value, 15);
-}
-
-static void
-rust_optional_operators ()
-{
-  auto opt = Rust::Optional<int>::some (15);
-
-  // as bool
-  ASSERT_TRUE (opt);
-
-  // deref
-  ASSERT_EQ (*opt, 15);
-
-  class Methodable
-  {
-  public:
-    int method () { return 15; }
-  };
-
-  auto m_opt = Rust::Optional<Methodable>::some (Methodable ());
-  ASSERT_EQ (m_opt->method (), 15);
-}
-
-static void
-rust_optional_take ()
-{
-  auto opt = Rust::Optional<int>::some (15);
-  auto value = opt.take ();
-
-  ASSERT_EQ (value, 15);
-  ASSERT_TRUE (opt.is_none ());
-}
-
-static void
-rust_optional_map ()
-{
-  auto opt = Rust::Optional<int>::some (15);
-  auto twice = opt.map<int> ([] (int value) { return value * 2; });
-
-  ASSERT_FALSE (opt);
-  ASSERT_TRUE (twice);
-  ASSERT_EQ (*twice, 30);
-}
-
-static void
-rust_optional_reference ()
-{
-  auto value = std::vector<std::string> ();
-  value.emplace_back ("rust");
-  value.emplace_back ("+");
-  value.emplace_back ("gcc");
-  value.emplace_back ("=");
-  value.emplace_back ("<3");
-
-  auto opt = Rust::Optional<std::vector<std::string> &>::some (value);
-
-  ASSERT_EQ (opt->at (0), "rust");
-  ASSERT_EQ (opt->at (2), "gcc");
-}
-
-#endif /* #if CHECKING_P */
-
-void
-rust_optional_test ()
-{
-#if CHECKING_P
-  rust_optional_create ();
-  rust_optional_operators ();
-  rust_optional_take ();
-  rust_optional_map ();
-  rust_optional_reference ();
-
-#endif /* #if CHECKING_P */
-}