Indent content of when (KT-14066)

#KT-14066 Fixed

idea/testData/formatter/WhenComment.kt

@@ -0,0 +1,58 @@
+fun foo(i: Int) {
+    when {
+    // line
+        1 -> 2
+
+    // One line before
+
+        2 -> 3
+
+    // Many lines before
+
+
+
+
+        3 -> 4
+
+
+    /* Block */
+        4 -> 5
+
+
+    /*
+      Block multiline
+     */
+        5 -> 6
+
+    /** Doc */
+        6 -> 7
+    }
+
+    when { // Assigned to entry
+        1 -> 2
+    }
+
+    when {
+    // Line
+        else -> 8
+    }
+
+    when {
+    /* Block */
+        else -> 8
+    }
+
+    when {
+    /**
+     * Doc
+     */
+        else -> 8
+    }
+
+    when {
+        1 ->
+            2 // Two
+        else ->
+            43 // 42
+    }
+}