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/ranges/RangeTest/longRange.kt

@@ -0,0 +1,39 @@
+import kotlin.test.*
+
+
+fun box() {
+    val range = -5L..9L
+    assertFalse(-10000000L in range)
+    assertFalse(-6L in range)
+
+    assertTrue(-5L in range)
+    assertTrue(-4L in range)
+    assertTrue(0L in range)
+    assertTrue(3L in range)
+    assertTrue(8L in range)
+    assertTrue(9L in range)
+
+    assertFalse(10L in range)
+    assertFalse(10000000L in range)
+
+    assertFalse(range.isEmpty())
+
+    assertTrue(9 in (range as ClosedRange<Long>))
+    assertFalse((range as ClosedRange<Long>).isEmpty())
+
+    assertTrue(1.toByte() in range)
+    assertTrue(1.toShort() in range)
+    assertTrue(1.toInt() in range)
+    assertTrue(1.toFloat() in range)
+    assertTrue(1.toDouble() in range)
+
+    assertFalse(Double.MAX_VALUE in range)
+
+    val openRange = 1L until 10L
+    assertTrue(9L in openRange)
+    assertFalse(10L in openRange)
+
+    assertTrue((0 until Long.MIN_VALUE).isEmpty())
+    assertTrue((0L until Long.MIN_VALUE).isEmpty())
+
+}