[K/N][Tests] Migrate framework and objcexport tests

^KT-61259

native/native.tests/testData/framework/kt56233/Kt56233.kt

@@ -0,0 +1,4 @@
+enum class SimpleEnum {
+    ONE,
+    TWO
+}

native/native.tests/testData/framework/kt56233/Kt56233.swift

@@ -0,0 +1,49 @@
+import Kt56233
+
+func threadRoutine(pointer: UnsafeMutableRawPointer) -> UnsafeMutableRawPointer? {
+    autoreleasepool {
+        let f = pointer.bindMemory(to: (() -> ()).self, capacity: 1).pointee
+        f()
+    }
+    return nil
+}
+
+func launchThreads(
+    _ f: @convention(c) () -> (),
+    threadCount: Int = 4
+) throws {
+    var threads: [pthread_t] = []
+    for _ in 0..<threadCount {
+        let fPtr = UnsafeMutablePointer<() -> ()>.allocate(capacity: 1)
+        fPtr.initialize(to: f)
+        var thread: pthread_t? = nil
+        let result = pthread_create(&thread, nil, threadRoutine, fPtr)
+        try assertEquals(actual: result, expected: 0)
+        threads.append(thread!)
+    }
+    for thread in threads {
+        pthread_join(thread, nil)
+    }
+}
+
+func kt56233() {
+#if AGGRESSIVE_GC
+    let count = 50_000
+#else
+    let count = 50_000_000
+#endif
+    // Stress testing for race conditions.
+    for _ in 0..<count {
+        _ = Kt56233.SimpleEnum.two.ordinal
+    }
+}
+
+// -------- Execution of the test --------
+
+class Kt56233Tests : SimpleTestProvider {
+    override init() {
+        super.init()
+
+        test("Kt56233", { try launchThreads(kt56233) })
+    }
+}