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/operators/delete-local-variable.js

@@ -0,0 +1,16 @@
+test("basic functionality", () => {
+    let a = 5;
+    var b = 6;
+    c = 7;
+    expect(delete a).toBeFalse();
+    expect(a).toBe(5);
+
+    expect(delete b).toBeFalse();
+    expect(b).toBe(6);
+
+    expect(delete c).toBeTrue();
+
+    expect(() => {
+        c;
+    }).toThrowWithMessage(ReferenceError, "'c' is not defined");
+});