[K/JS] Make available transitive reexport for ES modules

js/js.translator/testData/box/export/reexport.kt

@@ -0,0 +1,30 @@
+// IGNORE_FIR
+// DONT_TARGET_EXACT_BACKEND: JS
+// EXPECTED_REACHABLE_NODES: 1283
+// RUN_PLAIN_BOX_FUNCTION
+// INFER_MAIN_MODULE
+
+// MODULE: lib1
+// FILE: lib1.kt
+@JsExport
+fun bar() = "O"
+
+// MODULE: lib2(lib1)
+// FILE: lib2.kt
+
+@JsExport
+fun baz() = "K"
+
+// MODULE: main(lib2)
+// FILE: main.kt
+
+@JsExport
+fun result(o: String, k: String) = o + k
+
+// FILE: test.js
+ function box() {
+    const { bar, baz, result } = this.main;
+    const o = bar();
+    const k = baz();
+    return result(o, k);
+}