Move groupingByEachCount together with the new Grouping samples

libraries/stdlib/samples/test/samples/collections/collections.kt

@@ -369,17 +369,7 @@ class Collections {
             assertTrue(mutableNamesByTeam == namesByTeam)
         }
 
-        @Sample
-        fun groupingByEachCount() {
-            val words = "one two three four five six seven eight nine ten".split(' ')
-            val frequenciesByFirstChar = words.groupingBy { it.first() }.eachCount()
-            println("Counting first letters:")
-            assertPrints(frequenciesByFirstChar, "{o=1, t=3, f=2, s=2, e=1, n=1}")
 
-            val moreWords = "eleven twelve".split(' ')
-            val moreFrequencies = moreWords.groupingBy { it.first() }.eachCountTo(frequenciesByFirstChar.toMutableMap())
-            assertPrints(moreFrequencies, "{o=1, t=4, f=2, s=2, e=2, n=1}")
-        }
 
         @Sample
         fun joinTo() {

libraries/stdlib/samples/test/samples/collections/grouping.kt

@@ -10,6 +10,20 @@ import java.util.stream.Collector
 import kotlin.test.*
 
 class Grouping {
+
+    @Sample
+    fun groupingByEachCount() {
+        val words = "one two three four five six seven eight nine ten".split(' ')
+        val frequenciesByFirstChar = words.groupingBy { it.first() }.eachCount()
+        println("Counting first letters:")
+        assertPrints(frequenciesByFirstChar, "{o=1, t=3, f=2, s=2, e=1, n=1}")
+
+        val moreWords = "eleven twelve".split(' ')
+        val moreFrequencies = moreWords.groupingBy { it.first() }.eachCountTo(frequenciesByFirstChar.toMutableMap())
+        assertPrints(moreFrequencies, "{o=1, t=4, f=2, s=2, e=2, n=1}")
+    }
+
+
     @Sample
     fun aggregateEvenAndOdd() {
         val intList = listOf(0, 1, 2, 3, 4, 5, 6)