Add a class for long-running sequence/iterable tests

These tests will not run neither locally nor on CI unless the explicit
"kotlin.stdlib.test.long.sequences" parameter is specified.

libraries/stdlib/jvm/build.gradle

@@ -261,4 +261,10 @@ compileTestKotlin {
     }
 }
 
+test {
+    if (project.hasProperty("kotlin.stdlib.test.long.sequences")) {
+        systemProperty("kotlin.stdlib.test.long.sequences", "true")
+    }
+}
+
 kotlin.experimental.coroutines 'enable'

libraries/stdlib/jvm/test/collections/IndexOverflowJVMTest.kt

@@ -0,0 +1,45 @@
+/*
+ * Copyright 2010-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the license/LICENSE.txt file.
+ */
+
+package test.collections
+
+import org.junit.Assume
+import org.junit.Test
+import kotlin.test.*
+
+class IndexOverflowJVMTest {
+
+    @BeforeTest
+    fun checkIsNotIgnored() {
+        Assume.assumeTrue(System.getProperty("kotlin.stdlib.test.long.sequences")?.toBoolean() ?: false)
+    }
+
+
+    companion object {
+        fun <T> repeatCounted(value: T, count: Long = Int.MAX_VALUE + 1L): Sequence<T> = Sequence {
+            object : Iterator<T> {
+                var counter = count
+                override fun hasNext(): Boolean = counter > 0
+                override fun next(): T = value.also { counter-- }
+            }
+        }
+
+        val maxIndexSequence = repeatCounted("k", (Int.MAX_VALUE + 1L) + 1L) // here the last index is one greater than Int.MAX_VALUE
+        val maxIndexIterable = maxIndexSequence.asIterable()
+
+
+        val longCountSequence = Sequence {
+            object : Iterator<Long> {
+                var counter = 0L
+                override fun hasNext(): Boolean = true
+                override fun next(): Long = counter++
+            }
+        }
+    }
+
+
+
+
+}