Ignore type parameters of inline class

when checking whether we can return unboxed inline class
from suspend function

compiler/backend/src/org/jetbrains/kotlin/codegen/coroutines/coroutineCodegenUtil.kt

@@ -475,7 +475,8 @@ fun FunctionDescriptor.originalReturnTypeOfSuspendFunctionReturningUnboxedInline
     // Force boxing if the function overrides function with different type modulo nullability
     if (originalDescriptor.overriddenDescriptors.any {
             (it.original.returnType?.isMarkedNullable == true && it.original.returnType?.isNullableUnderlyingType() == true) ||
-                    it.original.returnType?.makeNotNullable() != originalReturnType.makeNotNullable()
+                    // We do not care about type parameters, just main class type
+                    it.original.returnType?.constructor?.declarationDescriptor != originalReturnType.constructor.declarationDescriptor
         }) return null
     // Don't box other inline classes
     return originalReturnType

compiler/fir/fir2ir/tests/org/jetbrains/kotlin/codegen/ir/FirBlackBoxCodegenTestGenerated.java

@@ -8749,6 +8749,11 @@ public class FirBlackBoxCodegenTestGenerated extends AbstractFirBlackBoxCodegenT
                 runTest("compiler/testData/codegen/box/coroutines/tailCallOptimizations/interfaceDelegation.kt");
             }
 
+            @TestMetadata("returnInlineClass.kt")
+            public void testReturnInlineClass() throws Exception {
+                runTest("compiler/testData/codegen/box/coroutines/tailCallOptimizations/returnInlineClass.kt");
+            }
+
             @TestMetadata("simple.kt")
             public void testSimple() throws Exception {
                 runTest("compiler/testData/codegen/box/coroutines/tailCallOptimizations/simple.kt");

compiler/testData/codegen/box/coroutines/tailCallOptimizations/returnInlineClass.kt

@@ -0,0 +1,41 @@
+// TARGET_BACKEND: JVM
+// IGNORE_BACKEND: JVM_IR
+// IGNORE_BACKEND_FIR: JVM_IR
+// FULL_JDK
+// WITH_RUNTIME
+// WITH_COROUTINES
+// CHECK_TAIL_CALL_OPTIMIZATION
+
+import helpers.*
+import kotlin.coroutines.*
+
+public inline class ValueOrClosed<out T>(val holder: Any?)
+
+public interface Channel<out E> {
+    public suspend fun receiveOrClosed(): ValueOrClosed<E>
+}
+
+class AbstractChannel<E> : Channel<E> {
+    private suspend fun <R> receiveSuspend(): R {
+        TailCallOptimizationChecker.saveStackTrace()
+        return ValueOrClosed<String>("OK") as R
+    }
+
+    public final override suspend fun receiveOrClosed(): ValueOrClosed<E> {
+        return receiveSuspend()
+    }
+}
+
+fun builder(c: suspend () -> Unit) {
+    c.startCoroutine(EmptyContinuation)
+}
+
+fun box(): String {
+    var res = "FAIL"
+    builder {
+        val channel: Channel<String> = AbstractChannel<String>()
+        res = channel.receiveOrClosed().holder as String
+    }
+    TailCallOptimizationChecker.checkStateMachineIn("receiveOrClosed-v5DwqjU")
+    return res
+}

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

@@ -10079,6 +10079,11 @@ public class BlackBoxCodegenTestGenerated extends AbstractBlackBoxCodegenTest {
                 runTest("compiler/testData/codegen/box/coroutines/tailCallOptimizations/interfaceDelegation.kt");
             }
 
+            @TestMetadata("returnInlineClass.kt")
+            public void testReturnInlineClass() throws Exception {
+                runTest("compiler/testData/codegen/box/coroutines/tailCallOptimizations/returnInlineClass.kt");
+            }
+
             @TestMetadata("simple.kt")
             public void testSimple() throws Exception {
                 runTest("compiler/testData/codegen/box/coroutines/tailCallOptimizations/simple.kt");

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

@@ -10079,6 +10079,11 @@ public class LightAnalysisModeTestGenerated extends AbstractLightAnalysisModeTes
                 runTest("compiler/testData/codegen/box/coroutines/tailCallOptimizations/interfaceDelegation.kt");
             }
 
+            @TestMetadata("returnInlineClass.kt")
+            public void testReturnInlineClass() throws Exception {
+                runTest("compiler/testData/codegen/box/coroutines/tailCallOptimizations/returnInlineClass.kt");
+            }
+
             @TestMetadata("simple.kt")
             public void testSimple() throws Exception {
                 runTest("compiler/testData/codegen/box/coroutines/tailCallOptimizations/simple.kt");

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

@@ -8749,6 +8749,11 @@ public class IrBlackBoxCodegenTestGenerated extends AbstractIrBlackBoxCodegenTes
                 runTest("compiler/testData/codegen/box/coroutines/tailCallOptimizations/interfaceDelegation.kt");
             }
 
+            @TestMetadata("returnInlineClass.kt")
+            public void testReturnInlineClass() throws Exception {
+                runTest("compiler/testData/codegen/box/coroutines/tailCallOptimizations/returnInlineClass.kt");
+            }
+
             @TestMetadata("simple.kt")
             public void testSimple() throws Exception {
                 runTest("compiler/testData/codegen/box/coroutines/tailCallOptimizations/simple.kt");

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

@@ -21414,11 +21414,6 @@ public class JsCodegenBoxTestGenerated extends AbstractJsCodegenBoxTest {
                     runTest("compiler/testData/codegen/box/ranges/unsigned/expression/emptyRange.kt");
                 }
 
-                @TestMetadata("inexactDownToMinValue.kt")
-                public void testInexactDownToMinValue() throws Exception {
-                    runTest("compiler/testData/codegen/box/ranges/unsigned/expression/inexactDownToMinValue.kt");
-                }
-
                 @TestMetadata("inexactSteppedDownTo.kt")
                 public void testInexactSteppedDownTo() throws Exception {
                     runTest("compiler/testData/codegen/box/ranges/unsigned/expression/inexactSteppedDownTo.kt");
@@ -21464,21 +21459,11 @@ public class JsCodegenBoxTestGenerated extends AbstractJsCodegenBoxTest {
                     runTest("compiler/testData/codegen/box/ranges/unsigned/expression/openRange.kt");
                 }
 
-                @TestMetadata("overflowZeroDownToMaxValue.kt")
-                public void testOverflowZeroDownToMaxValue() throws Exception {
-                    runTest("compiler/testData/codegen/box/ranges/unsigned/expression/overflowZeroDownToMaxValue.kt");
-                }
-
                 @TestMetadata("overflowZeroToMinValue.kt")
                 public void testOverflowZeroToMinValue() throws Exception {
                     runTest("compiler/testData/codegen/box/ranges/unsigned/expression/overflowZeroToMinValue.kt");
                 }
 
-                @TestMetadata("progressionDownToMinValue.kt")
-                public void testProgressionDownToMinValue() throws Exception {
-                    runTest("compiler/testData/codegen/box/ranges/unsigned/expression/progressionDownToMinValue.kt");
-                }
-
                 @TestMetadata("progressionMaxValueMinusTwoToMaxValue.kt")
                 public void testProgressionMaxValueMinusTwoToMaxValue() throws Exception {
                     runTest("compiler/testData/codegen/box/ranges/unsigned/expression/progressionMaxValueMinusTwoToMaxValue.kt");