JVM IR: Copy type parameters from class to suspendImpl

These type parameters where used in function parameters,
but since suspendImpl is static function, it has no access
to class type parameters. Solution is to copy them to
the function itself.

 #KT-55125 Fixed

compiler/fir/fir2ir/tests-gen/org/jetbrains/kotlin/test/runners/codegen/FirBlackBoxCodegenTestGenerated.java

@@ -10765,6 +10765,12 @@ public class FirBlackBoxCodegenTestGenerated extends AbstractFirBlackBoxCodegenT
             runTest("compiler/testData/codegen/box/coroutines/suspendImplBridge.kt");
         }
 
+        @Test
+        @TestMetadata("suspendImplTypeParameters.kt")
+        public void testSuspendImplTypeParameters() throws Exception {
+            runTest("compiler/testData/codegen/box/coroutines/suspendImplTypeParameters.kt");
+        }
+
         @Test
         @TestMetadata("suspendInCycle.kt")
         public void testSuspendInCycle() throws Exception {

compiler/ir/backend.jvm/lower/src/org/jetbrains/kotlin/backend/jvm/lower/AddContinuationLowering.kt

@@ -225,7 +225,8 @@ private class AddContinuationLowering(context: JvmBackendContext) : SuspendLower
             else
                 JavaDescriptorVisibilities.PACKAGE_VISIBILITY,
             isFakeOverride = false,
-            copyMetadata = false
+            copyMetadata = false,
+            typeParametersFromContext = irFunction.parentAsClass.typeParameters,
         )
         static.body = irFunction.moveBodyTo(static)
         // Fixup dispatch parameter to outer class

compiler/testData/codegen/box/coroutines/suspendImplTypeParameters.kt

@@ -0,0 +1,20 @@
+// TARGET_BACKEND: JVM_IR
+// WITH_STDLIB
+// FULL_JDK
+
+abstract class AbstractPersistence<T, U> {
+    open suspend fun fetch(identifier: U): T? = null
+}
+
+fun box(): String {
+    val genericString =
+        AbstractPersistence::class.java.declaredMethods
+            .single { it.name.contains("\$suspendImpl") }
+            .toGenericString()
+
+    if (!genericString.startsWith("static <T,U>")) {
+        return genericString
+    }
+
+    return "OK"
+}

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

@@ -10765,6 +10765,12 @@ public class IrBlackBoxCodegenTestGenerated extends AbstractIrBlackBoxCodegenTes
             runTest("compiler/testData/codegen/box/coroutines/suspendImplBridge.kt");
         }
 
+        @Test
+        @TestMetadata("suspendImplTypeParameters.kt")
+        public void testSuspendImplTypeParameters() throws Exception {
+            runTest("compiler/testData/codegen/box/coroutines/suspendImplTypeParameters.kt");
+        }
+
         @Test
         @TestMetadata("suspendInCycle.kt")
         public void testSuspendInCycle() throws Exception {