Insert one additional space for function literals

idea/testData/completion/handlers/FunctionLiteralInsertWhenNoSpacesForBraces.kt

@@ -0,0 +1,5 @@
+fun <T> jet.Array<T>.filter(predicate : (T) -> jet.Boolean) : java.util.List<T> = throw UnsupportedOperationException()
+
+fun main(args: Array<String>) {
+    args.fil<caret>
+}

idea/testData/completion/handlers/FunctionLiteralInsertWhenNoSpacesForBraces.kt.after

@@ -0,0 +1,5 @@
+fun <T> jet.Array<T>.filter(predicate : (T) -> jet.Boolean) : java.util.List<T> = throw UnsupportedOperationException()
+
+fun main(args: Array<String>) {
+    args.filter {<caret>}
+}

idea/testData/completion/handlers/HigherOrderFunction.kt.after

@@ -1,5 +1,5 @@
 fun <T> jet.Array<T>.filter(predicate : (T) -> jet.Boolean) : java.util.List<T> = throw UnsupportedOperationException()
 
 fun main(args: Array<String>) {
-    args.filter {<caret>}
+    args.filter { <caret> }
 }