Add space between 'when' and '('

idea/testData/codeInsight/surroundWith/when/enum.kt.after

@@ -5,7 +5,7 @@ enum class MyEnum {
 
 fun foo() {
     val a = MyEnum.FIRST
-    when(a) {
+    when (a) {
         <caret> -> {
         }
     }

idea/testData/codeInsight/surroundWith/when/multiExpression.kt.after

@@ -1,6 +1,6 @@
 fun foo() {
     val a = "aa"
-    when(a.capitalize()) {
+    when (a.capitalize()) {
         <caret> -> {
         }
         else -> {

idea/testData/codeInsight/surroundWith/when/singleExpression.kt.after

@@ -1,6 +1,6 @@
 fun foo() {
     val a = "aa"
-    when(a) {
+    when (a) {
         <caret> -> {
         }
         else -> {