Smart completion: fix anonymous object code style (KT-29572)

#KT-29572 Fixed

idea/idea-completion/testData/handlers/multifile/smart/AnonymousObjectGenericJava.kt.after

@@ -1,5 +1,5 @@
 fun<T> f(){
-    JavaClass<T>(object: Comparator<T> {
+    JavaClass<T>(object : Comparator<T> {
         override fun compare(var1: T, var2: T): Int {
             TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
         }

idea/idea-completion/testData/handlers/smart/AnonymousObject1.kt.after

@@ -1,5 +1,5 @@
 interface Foo
 
-var a : Foo = object: Foo {<caret>}
+var a : Foo = object : Foo {<caret>}
 
 //ELEMENT: object

idea/idea-completion/testData/handlers/smart/AnonymousObject2.kt.after

@@ -1,5 +1,5 @@
 abstract class Foo
 
-var a : Foo = object: Foo() {<caret>}
+var a : Foo = object : Foo() {<caret>}
 
 //ELEMENT: object

idea/idea-completion/testData/handlers/smart/AnonymousObject3.kt.after

@@ -1,4 +1,4 @@
-var r : Runnable = object: Runnable {
+var r : Runnable = object : Runnable {
     override fun run() {
         TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
     }

idea/idea-completion/testData/handlers/smart/AnonymousObjectInsertsImport.kt

@@ -1,3 +1,3 @@
 val c: java.io.Closeable = <caret>
 
-//ELEMENT_TEXT: "object: Closeable{...}"
+//ELEMENT_TEXT: "object : Closeable{...}"

idea/idea-completion/testData/handlers/smart/AnonymousObjectInsertsImport.kt.after

@@ -1,9 +1,9 @@
 import java.io.Closeable
 
-val c: java.io.Closeable = object: Closeable {
+val c: java.io.Closeable = object : Closeable {
     override fun close() {
         TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
     }
 }
 
-//ELEMENT_TEXT: "object: Closeable{...}"
+//ELEMENT_TEXT: "object : Closeable{...}"

idea/idea-completion/testData/handlers/smart/AnonymousObjectUninferredTypeArgs.kt.after

@@ -3,7 +3,7 @@ interface A<T>
 fun <T> foo(a: A<T>){}
 
 fun g() {
-    foo(object: A<<caret>> {})
+    foo(object : A<<caret>> {})
 }
 
 // ELEMENT: object

idea/idea-completion/testData/handlers/smart/Comma8.kt.after

@@ -3,7 +3,7 @@ interface Foo
 fun foo(f: Foo, i: Int){}
 
 fun bar() {
-    foo(object: Foo {<caret>}, )
+    foo(object : Foo {<caret>}, )
 }
 
 //ELEMENT: object

idea/idea-completion/testData/handlers/smart/ConstructorForGenericType2.kt.after

@@ -1,7 +1,7 @@
 fun registerHandler(handler: Handler<out Message>) {}
 
 fun test() {
-    registerHandler(object: Handler<Message> {
+    registerHandler(object : Handler<Message> {
         override fun handle(e: Message) {
             TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
         }