[K/N][tests] Move tests into better places

^KT-61259

native/native.tests/testData/codegen/literals/listof1.kt

@@ -0,0 +1,24 @@
+/*
+ * 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 file.
+ */
+// WITH_STDLIB
+// This test verifies absence of buggy optimzation removed in https://github.com/JetBrains/kotlin/commit/d222e9587
+
+import kotlin.test.*
+
+fun box(): String {
+    val list = foo()
+    if (!(list == foo()))
+        return "FAIL =="
+    if (list === foo())
+        return "FAIL ===: two listOf() having same contents are not optimized to be referentially equal in all backends, but are now unexpectedly referentially equal"
+    if (list.toString() != "[a, b, c]")
+        return "FAIL toString(): ${list.toString()}"
+
+    return "OK"
+}
+
+fun foo(): List<String> {
+    return listOf("a", "b", "c")
+}

native/native.tests/testData/codegen/literals/strdedup1.kt

@@ -0,0 +1,17 @@
+/*
+ * 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 file.
+ */
+
+import kotlin.test.*
+
+fun box(): String {
+    val str1 = "Hello"
+    val str2 = "Hello"
+    if (!(str1 == str2))
+        return "FAIL =="
+    if (!(str1 === str2))
+        return "FAIL ==="
+
+    return "OK"
+}

native/native.tests/testData/codegen/literals/strdedup2.kt

@@ -0,0 +1,22 @@
+/*
+ * 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 file.
+ */
+// TODO: string deduplication across several components seems to require
+// linking them as bitcode modules before translating to machine code.
+// IGNORE_BACKEND: JVM, JVM_IR
+// DISABLE_NATIVE
+// WITH_STDLIB
+
+import kotlin.test.*
+
+fun box(): String {
+    val str1 = ""
+    val str2 = "hello".subSequence(2, 2)
+    if(!(str1 == str2))
+        return "FAIL =="
+    if(!(str1 === str2))
+        return "FAIL ==="
+
+    return "OK"
+}