[interop][c][reverse][test] (KT-36639)

kotlin-native/backend.native/tests/build.gradle

@@ -4367,6 +4367,19 @@ dynamicTest("produce_dynamic") {
                 "Error handler: kotlin.Error: Expected error\n"
 }
 
+dynamicTest("kt36639") {
+    disabled = (project.target.name != project.hostName)
+    source = "produce_dynamic/kt-36639/main.kt"
+    cSource = "$projectDir/produce_dynamic/kt-36639/main.c"
+    goldValue = """|CFoo1::extfoo
+                   |CFoo1::extfoo
+                   |CFoo2::extfoo
+                   |CFoo2::extfoo
+                   |Int::extfoo
+                   |Int::extfoo
+                   |""".stripMargin()
+}
+
 dynamicTest("interop_concurrentRuntime") {
     disabled = (project.target.name != project.hostName)
     disabled = true  // KT-43180

kotlin-native/backend.native/tests/produce_dynamic/kt-36639/main.c

@@ -0,0 +1,28 @@
+#include "testlib_api.h"
+
+#define __ testlib_symbols()->
+#define T_(x) testlib_kref_ ## x
+
+
+int
+main() {
+  T_(CFoo1) foo1 = __ kotlin.root.CFoo1.CFoo1();
+  T_(CFoo2) foo2 = __ kotlin.root.CFoo2.CFoo2();
+  T_(kotlin_Int) intV = __ createNullableInt(42);
+  T_(kotlin_Any) any;
+  T_(Foo) foo = { .pinned = foo1.pinned };
+
+  any.pinned = foo1.pinned;
+  __ kotlin.root.CFoo1.callMe(foo1, any);
+  __ kotlin.root.Foo.extfoo(foo, any);
+  any.pinned = foo2.pinned;
+  __ kotlin.root.CFoo1.callMe(foo1, any);
+  __ kotlin.root.Foo.extfoo(foo, any);
+  any.pinned = intV.pinned;
+  __ kotlin.root.CFoo1.callMe(foo1, any);
+  __ kotlin.root.Foo.extfoo(foo, any);
+
+  __ DisposeStablePointer(foo1.pinned);
+  __ DisposeStablePointer(foo2.pinned);
+  __ DisposeStablePointer(intV.pinned);
+}

kotlin-native/backend.native/tests/produce_dynamic/kt-36639/main.kt

@@ -0,0 +1,21 @@
+interface Foo {
+    fun Any.extfoo()
+}
+
+class CFoo1:Foo {
+    override fun Any.extfoo() {
+        when(this) {
+            is CFoo1 -> println("CFoo1::extfoo")
+            is CFoo2 -> println("CFoo2::extfoo")
+            is Int -> println("Int::extfoo")
+        }
+    }
+
+    fun callMe(arg: Any) = arg.extfoo()
+}
+
+class CFoo2:Foo {
+    override fun Any.extfoo() {
+        TODO("Not yet implemented")
+    }
+}