Always add new line space with space before to deal with KEEP_FIRST_COLUMN_COMMENT option

InvertIfConditionIntention, RemoveBracesIntention tests are affected

 #KT-4175 In Progress

idea/testData/intentions/removeBraces/removeBracesFromIfWithCommentedCode.kt

@@ -1,9 +1,9 @@
-fun doSomething<T>(a: T) {}
+fun <T> doSomething(a: T) {}
 
 fun foo() {
-    <caret>if (true) {
-        //        val a = 1
-        //        var b = 1
+    if (true) <caret>{
+//        val a = 1
+//        var b = 1
         doSomething("test")
     }
 }