[K/N] Support stacktrace using libbacktrace

kotlin-native/backend.native/tests/framework/stacktraceByLibbacktrace/stacktraceByLibbacktrace.kt

@@ -0,0 +1,21 @@
+/*
+ * 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.
+ */
+
+inline fun inner2() : Nothing {
+    throw Exception()
+}
+
+fun inner1() : Nothing {
+    inner2()
+}
+
+fun getStackTrace() : List<String> {
+    try {
+       inner1()
+    }  catch (e: Exception) {
+        return e.getStackTrace().toList()
+    }
+    return emptyList()
+}

kotlin-native/backend.native/tests/framework/stacktraceByLibbacktrace/stacktraceByLibbacktrace.swift

@@ -0,0 +1,25 @@
+import Foundation
+import StacktraceByLibbacktrace
+
+func testStackTrace() throws {
+    let trace = StacktraceByLibbacktraceKt.getStackTrace()
+    try assertTrue(trace[0].contains("Throwable.kt"))
+    try assertTrue(trace[1].contains("Exceptions.kt"))
+    try assertTrue(trace[2].contains("stacktraceByLibbacktrace.kt:7"))
+    try assertTrue(trace[2].contains("[inlined]"))
+    try assertTrue(trace[3].contains("stacktraceByLibbacktrace.kt:11"))
+    try assertTrue(trace[4].contains("stacktraceByLibbacktrace.kt:16"))
+    try assertTrue(trace[6].contains("stacktraceByLibbacktrace.swift:5"))
+    try assertTrue(trace[7].contains("main.swift:126"))
+}
+
+class StacktraceByLibbacktraceTests : TestProvider {
+    var tests: [TestCase] = []
+
+    init() {
+        providers.append(self)
+        tests = [
+            TestCase(name: "Stacktrace", method: withAutorelease(testStackTrace)),
+        ]
+    }
+}