Minor, add regression test for K1 issue KT-61101

analysis/low-level-api-fir/tests/org/jetbrains/kotlin/analysis/low/level/api/fir/diagnostic/compiler/based/DiagnosticCompilerTestFE10TestdataTestGenerated.java

@@ -28548,6 +28548,12 @@ public class DiagnosticCompilerTestFE10TestdataTestGenerated extends AbstractDia
                 runTest("compiler/testData/diagnostics/tests/properties/localPropertyExtensions.kt");
             }
 
+            @Test
+            @TestMetadata("PrivateSetInSuperclass.kt")
+            public void testPrivateSetInSuperclass() throws Exception {
+                runTest("compiler/testData/diagnostics/tests/properties/PrivateSetInSuperclass.kt");
+            }
+
             @Test
             @TestMetadata("protectedGetterWithPublicSetter.kt")
             public void testProtectedGetterWithPublicSetter() throws Exception {

analysis/low-level-api-fir/tests/org/jetbrains/kotlin/analysis/low/level/api/fir/diagnostic/compiler/based/LLFirPreresolvedReversedDiagnosticCompilerFE10TestDataTestGenerated.java

@@ -28548,6 +28548,12 @@ public class LLFirPreresolvedReversedDiagnosticCompilerFE10TestDataTestGenerated
                 runTest("compiler/testData/diagnostics/tests/properties/localPropertyExtensions.kt");
             }
 
+            @Test
+            @TestMetadata("PrivateSetInSuperclass.kt")
+            public void testPrivateSetInSuperclass() throws Exception {
+                runTest("compiler/testData/diagnostics/tests/properties/PrivateSetInSuperclass.kt");
+            }
+
             @Test
             @TestMetadata("protectedGetterWithPublicSetter.kt")
             public void testProtectedGetterWithPublicSetter() throws Exception {

compiler/fir/analysis-tests/tests-gen/org/jetbrains/kotlin/test/runners/FirLightTreeOldFrontendDiagnosticsTestGenerated.java

@@ -26548,6 +26548,12 @@ public class FirLightTreeOldFrontendDiagnosticsTestGenerated extends AbstractFir
                 runTest("compiler/testData/diagnostics/tests/properties/localPropertyExtensions.kt");
             }
 
+            @Test
+            @TestMetadata("PrivateSetInSuperclass.kt")
+            public void testPrivateSetInSuperclass() throws Exception {
+                runTest("compiler/testData/diagnostics/tests/properties/PrivateSetInSuperclass.kt");
+            }
+
             @Test
             @TestMetadata("protectedGetterWithPublicSetter.kt")
             public void testProtectedGetterWithPublicSetter() throws Exception {

compiler/fir/analysis-tests/tests-gen/org/jetbrains/kotlin/test/runners/FirPsiOldFrontendDiagnosticsTestGenerated.java

@@ -26554,6 +26554,12 @@ public class FirPsiOldFrontendDiagnosticsTestGenerated extends AbstractFirPsiDia
                 runTest("compiler/testData/diagnostics/tests/properties/localPropertyExtensions.kt");
             }
 
+            @Test
+            @TestMetadata("PrivateSetInSuperclass.kt")
+            public void testPrivateSetInSuperclass() throws Exception {
+                runTest("compiler/testData/diagnostics/tests/properties/PrivateSetInSuperclass.kt");
+            }
+
             @Test
             @TestMetadata("protectedGetterWithPublicSetter.kt")
             public void testProtectedGetterWithPublicSetter() throws Exception {

compiler/testData/diagnostics/tests/properties/PrivateSetInSuperclass.fir.kt

@@ -0,0 +1,13 @@
+// ISSUE: KT-61101
+
+open class A {
+    var x: Int = 0
+        private set
+}
+
+class B : A()
+
+fun test() {
+    val b = B()
+    b.<!INVISIBLE_SETTER!>x<!> = throw Exception()
+}

compiler/testData/diagnostics/tests/properties/PrivateSetInSuperclass.kt

@@ -0,0 +1,13 @@
+// ISSUE: KT-61101
+
+open class A {
+    var x: Int = 0
+        private set
+}
+
+class B : A()
+
+fun test() {
+    val b = B()
+    b<!UNREACHABLE_CODE!>.x =<!> throw Exception()
+}

compiler/tests-common-new/tests-gen/org/jetbrains/kotlin/test/runners/DiagnosticTestGenerated.java

@@ -28548,6 +28548,12 @@ public class DiagnosticTestGenerated extends AbstractDiagnosticTest {
                 runTest("compiler/testData/diagnostics/tests/properties/localPropertyExtensions.kt");
             }
 
+            @Test
+            @TestMetadata("PrivateSetInSuperclass.kt")
+            public void testPrivateSetInSuperclass() throws Exception {
+                runTest("compiler/testData/diagnostics/tests/properties/PrivateSetInSuperclass.kt");
+            }
+
             @Test
             @TestMetadata("protectedGetterWithPublicSetter.kt")
             public void testProtectedGetterWithPublicSetter() throws Exception {