[FIR] Reproduce KT-63529

^KT-63529

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

@@ -1401,6 +1401,12 @@ public class DiagnosticCompilerTestFE10TestdataTestGenerated extends AbstractDia
             runTest("compiler/testData/diagnostics/tests/tailRecursionComplex.kt");
         }
 
+        @Test
+        @TestMetadata("tailrec.kt")
+        public void testTailrec() throws Exception {
+            runTest("compiler/testData/diagnostics/tests/tailrec.kt");
+        }
+
         @Test
         @TestMetadata("TraitOverrideObjectMethods.kt")
         public void testTraitOverrideObjectMethods() throws Exception {

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

@@ -1401,6 +1401,12 @@ public class LLFirPreresolvedReversedDiagnosticCompilerFE10TestDataTestGenerated
             runTest("compiler/testData/diagnostics/tests/tailRecursionComplex.kt");
         }
 
+        @Test
+        @TestMetadata("tailrec.kt")
+        public void testTailrec() throws Exception {
+            runTest("compiler/testData/diagnostics/tests/tailrec.kt");
+        }
+
         @Test
         @TestMetadata("TraitOverrideObjectMethods.kt")
         public void testTraitOverrideObjectMethods() throws Exception {

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

@@ -1401,6 +1401,12 @@ public class FirLightTreeOldFrontendDiagnosticsTestGenerated extends AbstractFir
             runTest("compiler/testData/diagnostics/tests/tailRecursionComplex.kt");
         }
 
+        @Test
+        @TestMetadata("tailrec.kt")
+        public void testTailrec() throws Exception {
+            runTest("compiler/testData/diagnostics/tests/tailrec.kt");
+        }
+
         @Test
         @TestMetadata("TraitOverrideObjectMethods.kt")
         public void testTraitOverrideObjectMethods() throws Exception {

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

@@ -1401,6 +1401,12 @@ public class FirPsiOldFrontendDiagnosticsTestGenerated extends AbstractFirPsiDia
             runTest("compiler/testData/diagnostics/tests/tailRecursionComplex.kt");
         }
 
+        @Test
+        @TestMetadata("tailrec.kt")
+        public void testTailrec() throws Exception {
+            runTest("compiler/testData/diagnostics/tests/tailrec.kt");
+        }
+
         @Test
         @TestMetadata("TraitOverrideObjectMethods.kt")
         public void testTraitOverrideObjectMethods() throws Exception {

compiler/testData/diagnostics/tests/tailrec.fir.kt

@@ -0,0 +1,8 @@
+// ISSUE: KT-63529
+
+private <!NO_TAIL_CALLS_FOUND!>tailrec<!> fun Context.findActivityOrNull(): Activity? {
+    return mBase<!UNNECESSARY_SAFE_CALL!>?.<!><!NON_TAIL_RECURSIVE_CALL!>findActivityOrNull<!>()
+}
+abstract class Context
+open class Activity
+var mBase: Context = TODO()

compiler/testData/diagnostics/tests/tailrec.kt

@@ -0,0 +1,8 @@
+// ISSUE: KT-63529
+
+private tailrec fun Context.findActivityOrNull(): Activity? {
+    return mBase<!UNNECESSARY_SAFE_CALL!>?.<!>findActivityOrNull()
+}
+abstract class Context
+open class Activity
+var mBase: Context = TODO()

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

@@ -1401,6 +1401,12 @@ public class DiagnosticTestGenerated extends AbstractDiagnosticTest {
             runTest("compiler/testData/diagnostics/tests/tailRecursionComplex.kt");
         }
 
+        @Test
+        @TestMetadata("tailrec.kt")
+        public void testTailrec() throws Exception {
+            runTest("compiler/testData/diagnostics/tests/tailrec.kt");
+        }
+
         @Test
         @TestMetadata("TraitOverrideObjectMethods.kt")
         public void testTraitOverrideObjectMethods() throws Exception {