JS: a cross-module local declaration fake override test;

Also describe an alternative, more robust approach in a TODO comment

js/js.translator/testData/box/inline/fakeOverrideInliningCrossModule.kt

@@ -0,0 +1,21 @@
+// EXPECTED_REACHABLE_NODES: 1300
+// MODULE: libA
+// FILE: libA.kt
+inline fun foo() = (object : II {}).ok()
+
+interface I {
+    fun ok() = "OK"
+}
+
+interface II: I
+
+// MODULE: libB(libA)
+// FILE: libB.kt
+
+inline fun bar() = foo()
+
+// MODULE: main(libB)
+// FILE: main.kt
+fun box() = bar()
+
+