[JS IR BE] Update test data

js/js.translator/testData/box/callableReference/function/classMemberDirectCache.kt

@@ -0,0 +1,14 @@
+// IGNORE_BACKEND: JS
+
+package foo
+
+class A(val v: String) {
+    fun foo() = v
+}
+
+fun box(): String {
+    val aRef1 = A::foo
+    val aRef2 = A::foo
+    if (aRef1 !== aRef2) return "Fail != "
+    return aRef1(A("O"))  + aRef2(A("K"))
+}