[KLIB tool] Migrate 'dump-metadata' tests to K/N test infra

native/native.tests/testData/klib/dump-metadata/Constructors.kt

@@ -0,0 +1,27 @@
+@file:Suppress("UNUSED_PARAMETER")
+
+annotation class A
+
+class Foo(x: Int) {
+    constructor(): this(0)
+    constructor(x: Double): this(x.toInt())
+    constructor(x: Double, y: Int): this(y)
+
+    private constructor(x: Long): this(0)
+    protected constructor(x: String): this(0)
+    @A constructor(x: Foo) : this(0)
+}
+
+class Bar @A constructor(x: Int)
+class Baz private constructor(x: Int)
+class Qux protected constructor(x: Int)
+
+class Typed<T>(x: Int) {
+    constructor(): this(0)
+    constructor(x: Double): this(x.toInt())
+    constructor(x: Double, y: Int): this(y)
+
+    private constructor(x: Long): this(0)
+    protected constructor(x: String): this(0)
+    @A constructor(x: Foo) : this(0)
+}