[kotlin-native][test][dynamic test] tests provoking generating empty structs kt-42796

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

@@ -4460,6 +4460,18 @@ dynamicTest("kt36639") {
                    |""".stripMargin()
 }
 
+for (i in 0..2) {
+    dynamicTest("kt42796_$i") {
+        clangTool = "clang++"
+        disabled = (project.target.name != project.hostName)
+        source = "produce_dynamic/kt-42796/main-${i}.kt"
+        cSource = "$projectDir/produce_dynamic/kt-42796/main.cpp"
+        goldValue = ""
+        clangFlags = ["-DTEST=$i", "-Werror"]
+    }
+}
+
+
 dynamicTest("interop_concurrentRuntime") {
     disabled = (project.target.name != project.hostName)
     disabled = true  // KT-43180

kotlin-native/backend.native/tests/produce_dynamic/kt-42796/main-0.kt

@@ -0,0 +1,8 @@
+/*
+ * Copyright 2010-2021 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package empty
+
+internal fun internalZerro() = 0

kotlin-native/backend.native/tests/produce_dynamic/kt-42796/main-1.kt

@@ -0,0 +1,8 @@
+/*
+ * Copyright 2010-2021 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package empty.nonempty
+
+fun one() = 1

kotlin-native/backend.native/tests/produce_dynamic/kt-42796/main-2.kt

@@ -0,0 +1,8 @@
+/*
+ * Copyright 2010-2021 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package empty.nonempty.internalEmpty
+
+internal fun two() = 3

kotlin-native/backend.native/tests/produce_dynamic/kt-42796/main.cpp

@@ -0,0 +1,13 @@
+#include "testlib_api.h"
+
+#define __ testlib_symbols()->
+#define T_(x) testlib_kref_ ## x
+
+
+int
+main() {
+#if TEST == 1
+   __ kotlin.root.empty.nonempty.one();
+#endif
+  return 0;
+}