JS: add test to prove that KT-14419 is not more reproducible. Add test to prove that extension delegate with extension getValue is translated correctly.

compiler/testData/codegen/box/delegatedProperty/extensionPropertyAndExtensionGetValue.kt

@@ -0,0 +1,13 @@
+class A(val o: String)
+
+interface I {
+    val k: String
+}
+
+inline operator fun A.getValue(thisRef: I, property: Any): String = o + thisRef.k
+
+class B(override val k: String) : I
+
+val B.prop by A("O")
+
+fun box() = B("K").prop