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/LibJS/Runtime/FunctionConstructor.h

@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) 2020-2022, Linus Groh <linusg@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <LibJS/Runtime/FunctionKind.h>
+#include <LibJS/Runtime/NativeFunction.h>
+
+namespace JS {
+
+struct ParameterArgumentsAndBody {
+    Vector<String> parameters;
+    String body;
+};
+
+ThrowCompletionOr<ParameterArgumentsAndBody> extract_parameter_arguments_and_body(VM&, Span<Value> arguments);
+
+class FunctionConstructor final : public NativeFunction {
+    JS_OBJECT(FunctionConstructor, NativeFunction);
+    JS_DECLARE_ALLOCATOR(FunctionConstructor);
+
+public:
+    static ThrowCompletionOr<NonnullGCPtr<ECMAScriptFunctionObject>> create_dynamic_function(VM&, FunctionObject& constructor, FunctionObject* new_target, FunctionKind kind, ReadonlySpan<String> parameter_args, String const& body_string);
+
+    virtual void initialize(Realm&) override;
+    virtual ~FunctionConstructor() override = default;
+
+    virtual ThrowCompletionOr<Value> call() override;
+    virtual ThrowCompletionOr<NonnullGCPtr<Object>> construct(FunctionObject& new_target) override;
+
+private:
+    explicit FunctionConstructor(Realm&);
+
+    virtual bool has_constructor() const override { return true; }
+};
+
+}