[KLIB] Fix references to private top-level typealias via type abbreviation

compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/KotlinMangler.kt

@@ -58,6 +58,10 @@ abstract class KotlinManglerImpl : KotlinMangler {
 
         if (declaration.isPlatformSpecificExported()) return true
 
+        if (declaration is IrTypeAlias && declaration.parent is IrPackageFragment) {
+            return true
+        }
+
         if (descriptorAnnotations.hasAnnotation(publishedApiAnnotation)) {
             return true
         }

compiler/testData/codegen/box/typealias/privateInKlib.kt

@@ -0,0 +1,22 @@
+// MODULE: lib
+// FILE: f1.kt
+
+private typealias TA = String
+
+public interface I {
+    public fun foo(): TA
+}
+
+open public class B: I {
+    override fun foo() = "OK"
+}
+
+// FILE: f2.kt
+
+
+public class D: B()
+
+// MODULE: main(lib)
+// FILE: m.kt
+
+fun box() = D().foo()

compiler/tests/org/jetbrains/kotlin/codegen/BlackBoxCodegenTestGenerated.java

@@ -25131,6 +25131,11 @@ public class BlackBoxCodegenTestGenerated extends AbstractBlackBoxCodegenTest {
             runTest("compiler/testData/codegen/box/typealias/objectLiteralConstructor.kt");
         }
 
+        @TestMetadata("privateInKlib.kt")
+        public void testPrivateInKlib() throws Exception {
+            runTest("compiler/testData/codegen/box/typealias/privateInKlib.kt");
+        }
+
         @TestMetadata("simple.kt")
         public void testSimple() throws Exception {
             runTest("compiler/testData/codegen/box/typealias/simple.kt");

compiler/tests/org/jetbrains/kotlin/codegen/LightAnalysisModeTestGenerated.java

@@ -25131,6 +25131,11 @@ public class LightAnalysisModeTestGenerated extends AbstractLightAnalysisModeTes
             runTest("compiler/testData/codegen/box/typealias/objectLiteralConstructor.kt");
         }
 
+        @TestMetadata("privateInKlib.kt")
+        public void testPrivateInKlib() throws Exception {
+            runTest("compiler/testData/codegen/box/typealias/privateInKlib.kt");
+        }
+
         @TestMetadata("simple.kt")
         public void testSimple() throws Exception {
             runTest("compiler/testData/codegen/box/typealias/simple.kt");

compiler/tests/org/jetbrains/kotlin/codegen/ir/IrBlackBoxCodegenTestGenerated.java

@@ -24031,6 +24031,11 @@ public class IrBlackBoxCodegenTestGenerated extends AbstractIrBlackBoxCodegenTes
             runTest("compiler/testData/codegen/box/typealias/objectLiteralConstructor.kt");
         }
 
+        @TestMetadata("privateInKlib.kt")
+        public void testPrivateInKlib() throws Exception {
+            runTest("compiler/testData/codegen/box/typealias/privateInKlib.kt");
+        }
+
         @TestMetadata("simple.kt")
         public void testSimple() throws Exception {
             runTest("compiler/testData/codegen/box/typealias/simple.kt");

js/js.tests/test/org/jetbrains/kotlin/js/test/ir/semantics/IrJsCodegenBoxTestGenerated.java

@@ -19181,6 +19181,11 @@ public class IrJsCodegenBoxTestGenerated extends AbstractIrJsCodegenBoxTest {
             runTest("compiler/testData/codegen/box/typealias/objectLiteralConstructor.kt");
         }
 
+        @TestMetadata("privateInKlib.kt")
+        public void testPrivateInKlib() throws Exception {
+            runTest("compiler/testData/codegen/box/typealias/privateInKlib.kt");
+        }
+
         @TestMetadata("simple.kt")
         public void testSimple() throws Exception {
             runTest("compiler/testData/codegen/box/typealias/simple.kt");

js/js.tests/test/org/jetbrains/kotlin/js/test/semantics/JsCodegenBoxTestGenerated.java

@@ -20336,6 +20336,11 @@ public class JsCodegenBoxTestGenerated extends AbstractJsCodegenBoxTest {
             runTest("compiler/testData/codegen/box/typealias/objectLiteralConstructor.kt");
         }
 
+        @TestMetadata("privateInKlib.kt")
+        public void testPrivateInKlib() throws Exception {
+            runTest("compiler/testData/codegen/box/typealias/privateInKlib.kt");
+        }
+
         @TestMetadata("simple.kt")
         public void testSimple() throws Exception {
             runTest("compiler/testData/codegen/box/typealias/simple.kt");