added simpler natural language text sample

libraries/stdlib/test/NaturalLanguageTest.kt

@@ -1,16 +1,16 @@
-package test
+package test.collections
 
 import org.junit.Test as test
 import kotlin.test.*
 
 class NaturalLanguageTest {
 
-    test fun `test strings equal`() {
+    test fun `strings equal`() {
         val actual = "abc"
         assertEquals("abc", actual)
     }
 
-    test fun `test numbers equal`() {
+    test fun `numbers equal`() {
         val actual = 5
         assertEquals(5, actual)
     }