tests: Copy stdlib tests from Kotlin/JVM

This patch copies Kotlin/JVM stdlib tests (libraries/stdlib/test)
excepting ones with explicit java dependencies. It also transforms
the tests to use them as box-tests.

backend.native/tests/external/stdlib/TuplesTest/pairEquals.kt

@@ -0,0 +1,14 @@
+import kotlin.test.*
+import kotlin.test.assertTrue
+import kotlin.test.assertEquals
+import kotlin.test.assertNotEquals
+
+val p = Pair(1, "a")
+val t = Triple(1, "a", 0.07)
+fun box() {
+    assertEquals(Pair(1, "a"), p)
+    assertNotEquals(Pair(2, "a"), p)
+    assertNotEquals(Pair(1, "b"), p)
+    assertTrue(!p.equals(null))
+    assertNotEquals("", (p as Any))
+}

backend.native/tests/external/stdlib/TuplesTest/pairFirstAndSecond.kt

@@ -0,0 +1,11 @@
+import kotlin.test.*
+import kotlin.test.assertTrue
+import kotlin.test.assertEquals
+import kotlin.test.assertNotEquals
+
+val p = Pair(1, "a")
+val t = Triple(1, "a", 0.07)
+fun box() {
+    assertEquals(1, p.first)
+    assertEquals("a", p.second)
+}

backend.native/tests/external/stdlib/TuplesTest/pairHashCode.kt

@@ -0,0 +1,14 @@
+import kotlin.test.*
+import kotlin.test.assertTrue
+import kotlin.test.assertEquals
+import kotlin.test.assertNotEquals
+
+val p = Pair(1, "a")
+val t = Triple(1, "a", 0.07)
+fun box() {
+    assertEquals(Pair(1, "a").hashCode(), p.hashCode())
+    assertNotEquals(Pair(2, "a").hashCode(), p.hashCode())
+    assertNotEquals(0, Pair(null, "b").hashCode())
+    assertNotEquals(0, Pair("b", null).hashCode())
+    assertEquals(0, Pair(null, null).hashCode())
+}

backend.native/tests/external/stdlib/TuplesTest/pairHashSet.kt

@@ -0,0 +1,12 @@
+import kotlin.test.*
+import kotlin.test.assertTrue
+import kotlin.test.assertEquals
+import kotlin.test.assertNotEquals
+
+val p = Pair(1, "a")
+val t = Triple(1, "a", 0.07)
+fun box() {
+    val s = hashSetOf(Pair(1, "a"), Pair(1, "b"), Pair(1, "a"))
+    assertEquals(2, s.size)
+    assertTrue(s.contains(p))
+}

backend.native/tests/external/stdlib/TuplesTest/pairMultiAssignment.kt

@@ -0,0 +1,12 @@
+import kotlin.test.*
+import kotlin.test.assertTrue
+import kotlin.test.assertEquals
+import kotlin.test.assertNotEquals
+
+val p = Pair(1, "a")
+val t = Triple(1, "a", 0.07)
+fun box() {
+    val (a, b) = p
+    assertEquals(1, a)
+    assertEquals("a", b)
+}

backend.native/tests/external/stdlib/TuplesTest/pairToList.kt

@@ -0,0 +1,11 @@
+import kotlin.test.*
+import kotlin.test.assertTrue
+import kotlin.test.assertEquals
+import kotlin.test.assertNotEquals
+
+val t = Triple(1, "a", 0.07)
+fun box() {
+    assertEquals(listOf(1, 2), (1 to 2).toList())
+    assertEquals(listOf(1, null), (1 to null).toList())
+    assertEquals(listOf(1, "2"), (1 to "2").toList())
+}

backend.native/tests/external/stdlib/TuplesTest/pairToString.kt

@@ -0,0 +1,10 @@
+import kotlin.test.*
+import kotlin.test.assertTrue
+import kotlin.test.assertEquals
+import kotlin.test.assertNotEquals
+
+val p = Pair(1, "a")
+val t = Triple(1, "a", 0.07)
+fun box() {
+    assertEquals("(1, a)", p.toString())
+}

backend.native/tests/external/stdlib/TuplesTest/tripleEquals.kt

@@ -0,0 +1,15 @@
+import kotlin.test.*
+import kotlin.test.assertTrue
+import kotlin.test.assertEquals
+import kotlin.test.assertNotEquals
+
+val p = Pair(1, "a")
+val t = Triple(1, "a", 0.07)
+fun box() {
+    assertEquals(Triple(1, "a", 0.07), t)
+    assertNotEquals(Triple(2, "a", 0.07), t)
+    assertNotEquals(Triple(1, "b", 0.07), t)
+    assertNotEquals(Triple(1, "a", 0.1), t)
+    assertTrue(!t.equals(null))
+    assertNotEquals("", (t as Any))
+}

backend.native/tests/external/stdlib/TuplesTest/tripleFirstAndSecond.kt

@@ -0,0 +1,11 @@
+import kotlin.test.*
+import kotlin.test.assertTrue
+import kotlin.test.assertEquals
+import kotlin.test.assertNotEquals
+
+val t = Triple(1, "a", 0.07)
+fun box() {
+    assertEquals(1, t.first)
+    assertEquals("a", t.second)
+    assertEquals(0.07, t.third)
+}

backend.native/tests/external/stdlib/TuplesTest/tripleHashCode.kt

@@ -0,0 +1,15 @@
+import kotlin.test.*
+import kotlin.test.assertTrue
+import kotlin.test.assertEquals
+import kotlin.test.assertNotEquals
+
+val p = Pair(1, "a")
+val t = Triple(1, "a", 0.07)
+fun box() {
+    assertEquals(Triple(1, "a", 0.07).hashCode(), t.hashCode())
+    assertNotEquals(Triple(2, "a", 0.07).hashCode(), t.hashCode())
+    assertNotEquals(0, Triple(null, "b", 0.07).hashCode())
+    assertNotEquals(0, Triple("b", null, 0.07).hashCode())
+    assertNotEquals(0, Triple("b", 1, null).hashCode())
+    assertEquals(0, Triple(null, null, null).hashCode())
+}

backend.native/tests/external/stdlib/TuplesTest/tripleHashSet.kt

@@ -0,0 +1,12 @@
+import kotlin.test.*
+import kotlin.test.assertTrue
+import kotlin.test.assertEquals
+import kotlin.test.assertNotEquals
+
+val p = Pair(1, "a")
+val t = Triple(1, "a", 0.07)
+fun box() {
+    val s = hashSetOf(Triple(1, "a", 0.07), Triple(1, "b", 0.07), Triple(1, "a", 0.07))
+    assertEquals(2, s.size)
+    assertTrue(s.contains(t))
+}

backend.native/tests/external/stdlib/TuplesTest/tripleMultiAssignment.kt

@@ -0,0 +1,12 @@
+import kotlin.test.*
+import kotlin.test.assertTrue
+import kotlin.test.assertEquals
+import kotlin.test.assertNotEquals
+
+val t = Triple(1, "a", 0.07)
+fun box() {
+    val (a, b, c) = t
+    assertEquals(1, a)
+    assertEquals("a", b)
+    assertEquals(0.07, c)
+}

backend.native/tests/external/stdlib/TuplesTest/tripleToList.kt

@@ -0,0 +1,12 @@
+import kotlin.test.*
+import kotlin.test.assertTrue
+import kotlin.test.assertEquals
+import kotlin.test.assertNotEquals
+
+val p = Pair(1, "a")
+val t = Triple(1, "a", 0.07)
+fun box() {
+    assertEquals(listOf(1, 2, 3), (Triple(1, 2, 3)).toList())
+    assertEquals(listOf(1, null, 3), (Triple(1, null, 3)).toList())
+    assertEquals(listOf(1, 2, "3"), (Triple(1, 2, "3")).toList())
+}

backend.native/tests/external/stdlib/TuplesTest/tripleToString.kt

@@ -0,0 +1,9 @@
+import kotlin.test.*
+import kotlin.test.assertTrue
+import kotlin.test.assertEquals
+import kotlin.test.assertNotEquals
+
+val t = Triple(1, "a", 0.07)
+fun box() {
+    assertEquals("(1, a, 0.07)", t.toString())
+}