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/Tests/functions/function-evaluation-order.js

@@ -0,0 +1,65 @@
+describe("CallExpression", () => {
+    test("callee is evaluated before arguments", () => {
+        function foo() {}
+        const values = [];
+
+        [foo][(values.push("callee"), 0)](values.push("args"));
+
+        expect(values).toEqual(["callee", "args"]);
+    });
+
+    test("arguments are evaluated in order", () => {
+        function foo() {}
+        const values = [];
+
+        foo(values.push("arg1"), values.push("arg2"), values.push("arg3"));
+
+        expect(values).toEqual(["arg1", "arg2", "arg3"]);
+    });
+
+    test("arguments are evaluated before callee is checked for its type", () => {
+        const values = [];
+
+        expect(() => {
+            "foo"(values.push("args"));
+        }).toThrowWithMessage(TypeError, "foo is not a function");
+        expect(values).toEqual(["args"]);
+
+        expect(() => {
+            "foo"(bar);
+        }).toThrowWithMessage(ReferenceError, "'bar' is not defined");
+    });
+});
+
+describe("NewExpression", () => {
+    test("callee is evaluated before arguments", () => {
+        function Foo() {}
+        const values = [];
+
+        new [Foo][(values.push("callee"), 0)](values.push("args"));
+
+        expect(values).toEqual(["callee", "args"]);
+    });
+
+    test("arguments are evaluated in order", () => {
+        function Foo() {}
+        const values = [];
+
+        new Foo(values.push("arg1"), values.push("arg2"), values.push("arg3"));
+
+        expect(values).toEqual(["arg1", "arg2", "arg3"]);
+    });
+
+    test("arguments are evaluated before callee is checked for its type", () => {
+        const values = [];
+
+        expect(() => {
+            new "Foo"(values.push("args"));
+        }).toThrowWithMessage(TypeError, "Foo is not a constructor");
+        expect(values).toEqual(["args"]);
+
+        expect(() => {
+            new "Foo"(bar);
+        }).toThrowWithMessage(ReferenceError, "'bar' is not defined");
+    });
+});