Everywhere: Hoist the Libraries folder to the top-level

Author: https://github.com/trflynn89
Commit: 93712b24bf
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/2256
Reviewed-by: https://github.com/sideshowbarker

Libraries/LibMain/Main.h

@@ -0,0 +1,27 @@
+/*
+ * Copyright (c) 2021, Andreas Kling <andreas@ladybird.org>
+ * Copyright (c) 2022, the SerenityOS developers.
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <AK/Error.h>
+#include <AK/Span.h>
+#include <AK/StringView.h>
+
+namespace Main {
+
+struct Arguments {
+    int argc {};
+    char** argv {};
+    Span<StringView> strings;
+};
+
+int return_code_for_errors();
+void set_return_code_for_errors(int);
+
+}
+
+ErrorOr<int> serenity_main(Main::Arguments);