Replace 'class object' with 'default object' in renderers and test data

Includes changes to decompiled text
Old syntax is used in builtins and project code for now

idea/testData/refactoring/extractFunction/basic/privateMemberInClassObject.kt

@@ -1,6 +1,6 @@
 // SIBLING:
 public class A {
-    class object {
+    default object {
         private val t: Int = 1
     }
     fun f() {

idea/testData/refactoring/extractFunction/parameters/misc/classObject.kt

@@ -5,7 +5,7 @@ class MyClass {
         return coProp + 10</selection>
     }
 
-    class object {
+    default object {
         val coProp = 1
 
         fun coFun() {

idea/testData/refactoring/extractFunction/parameters/misc/classObject.kt.after

@@ -4,7 +4,7 @@ class MyClass {
         return i()
     }
 
-    class object {
+    default object {
         val coProp = 1
 
         fun coFun() {

idea/testData/refactoring/extractFunction/parameters/misc/innerClassObject.kt

@@ -6,7 +6,7 @@ class A {
             return coProp + 10</selection>
         }
 
-        class object {
+        default object {
             val coProp = 1
 
             fun coFun() {

idea/testData/refactoring/extractFunction/parameters/misc/innerClassObject.kt.after

@@ -5,7 +5,7 @@ class A {
             return i()
         }
 
-        class object {
+        default object {
             val coProp = 1
 
             fun coFun() {

idea/testData/refactoring/extractFunction/parameters/misc/qualifiedClassObject.kt

@@ -6,7 +6,7 @@ class MyClass {
     }
 
     public class P {
-        class object {
+        default object {
             val a = 1
             fun foo() = 1
         }

idea/testData/refactoring/extractFunction/parameters/misc/qualifiedClassObject.kt.after

@@ -5,7 +5,7 @@ class MyClass {
     }
 
     public class P {
-        class object {
+        default object {
             val a = 1
             fun foo() = 1
         }

idea/testData/refactoring/inline/property/ClassObjectProperty.kt

@@ -1,5 +1,5 @@
 class Class {
-    class object {
+    default object {
         val p = 239
     }
 }

idea/testData/refactoring/inline/property/ClassObjectProperty.kt.after

@@ -1,5 +1,5 @@
 class Class {
-    class object {
+    default object {
     }
 }
 

idea/testData/refactoring/move/kotlin/moveTopLevelDeclarations/misc/singletonsAndStatics/after/library/KtClass.kt

@@ -2,19 +2,19 @@ package library
 
 class KtClass {
     class Inner {
-        class object {
+        default object {
             fun foo(): Int = 1
         }
     }
 
-    class object {
+    default object {
         fun foo(): Int = 1
     }
 }
 
 object KtObject {
     class Inner {
-        class object {
+        default object {
             fun foo(): Int = 1
         }
     }

idea/testData/refactoring/move/kotlin/moveTopLevelDeclarations/misc/singletonsAndStatics/after/source/Foo.kt

@@ -3,7 +3,7 @@ package source
 import library.*
 
 class Bar {
-    class object {
+    default object {
         val c : Int
     }
 }

idea/testData/refactoring/move/kotlin/moveTopLevelDeclarations/misc/singletonsAndStatics/before/library/KtClass.kt

@@ -2,19 +2,19 @@ package library
 
 class KtClass {
     class Inner {
-        class object {
+        default object {
             fun foo(): Int = 1
         }
     }
 
-    class object {
+    default object {
         fun foo(): Int = 1
     }
 }
 
 object KtObject {
     class Inner {
-        class object {
+        default object {
             fun foo(): Int = 1
         }
     }

idea/testData/refactoring/move/kotlin/moveTopLevelDeclarations/misc/singletonsAndStatics/before/source/Foo.kt

@@ -21,7 +21,7 @@ class <caret>Foo {
 }
 
 class Bar {
-    class object {
+    default object {
         val c : Int
     }
 }