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

js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/ir/FirJsBoxTestGenerated.java

@@ -2367,6 +2367,12 @@ public class FirJsBoxTestGenerated extends AbstractFirJsBoxTest {
                 runTest("js/js.translator/testData/box/esModules/export/overriddenExternalMethodWithSameStableNameMethodInExportedFile.kt");
             }
 
+            @Test
+            @TestMetadata("reexport.kt")
+            public void testReexport() throws Exception {
+                runTest("js/js.translator/testData/box/esModules/export/reexport.kt");
+            }
+
             @Test
             @TestMetadata("reservedModuleName.kt")
             public void testReservedModuleName() throws Exception {
@@ -2920,6 +2926,12 @@ public class FirJsBoxTestGenerated extends AbstractFirJsBoxTest {
             runTest("js/js.translator/testData/box/export/overridenMethod.kt");
         }
 
+        @Test
+        @TestMetadata("reexport.kt")
+        public void testReexport() throws Exception {
+            runTest("js/js.translator/testData/box/export/reexport.kt");
+        }
+
         @Test
         @TestMetadata("reservedModuleName.kt")
         public void testReservedModuleName() throws Exception {

js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/ir/IrBoxJsTestGenerated.java

@@ -2367,6 +2367,12 @@ public class IrBoxJsTestGenerated extends AbstractIrBoxJsTest {
                 runTest("js/js.translator/testData/box/esModules/export/overriddenExternalMethodWithSameStableNameMethodInExportedFile.kt");
             }
 
+            @Test
+            @TestMetadata("reexport.kt")
+            public void testReexport() throws Exception {
+                runTest("js/js.translator/testData/box/esModules/export/reexport.kt");
+            }
+
             @Test
             @TestMetadata("reservedModuleName.kt")
             public void testReservedModuleName() throws Exception {
@@ -2920,6 +2926,12 @@ public class IrBoxJsTestGenerated extends AbstractIrBoxJsTest {
             runTest("js/js.translator/testData/box/export/overridenMethod.kt");
         }
 
+        @Test
+        @TestMetadata("reexport.kt")
+        public void testReexport() throws Exception {
+            runTest("js/js.translator/testData/box/export/reexport.kt");
+        }
+
         @Test
         @TestMetadata("reservedModuleName.kt")
         public void testReservedModuleName() throws Exception {

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

@@ -0,0 +1,31 @@
+// IGNORE_FIR
+// DONT_TARGET_EXACT_BACKEND: JS
+// ES_MODULES
+// EXPECTED_REACHABLE_NODES: 1283
+
+// 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: entry.mjs
+// ENTRY_ES_MODULE
+import { bar, baz, result } from "./reexport_v5.mjs";
+
+export function box() {
+    const o = bar();
+    const k = baz();
+    return result(o, k);
+}

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);
+}