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/formatter/ClassLineBreak.after.inv.kt

@@ -1,10 +1,10 @@
 class A {
-    class object {
+    default object {
     }
 }
 
 class A {
-    class object {
+    default object {
     }
 }
 

idea/testData/formatter/ClassLineBreak.after.kt

@@ -1,13 +1,13 @@
 class A
 {
-    class object
+    default object
     {
     }
 }
 
 class A
 {
-    class object
+    default object
     {
     }
 }

idea/testData/formatter/ClassLineBreak.kt

@@ -1,11 +1,11 @@
 class A {
-    class object {
+    default object {
     }
 }
 
 class A
 {
-    class object
+    default object
     {
     }
 }

idea/testData/formatter/EmptyBlocks.after.inv.kt

@@ -1,7 +1,7 @@
 class Test {}
 
 class Other {
-    class object {}
+    default object {}
 }
 
 object TestObject {}
@@ -21,7 +21,7 @@ class Test1 {
 }
 
 class Other1 {
-    class object {
+    default object {
     }
 }
 

idea/testData/formatter/EmptyBlocks.kt

@@ -1,7 +1,7 @@
 class Test {}
 
 class Other {
-    class object {}
+    default object {}
 }
 
 object TestObject {}
@@ -21,7 +21,7 @@ class Test1 {
 }
 
 class Other1 {
-    class object {
+    default object {
     }
 }
 

idea/testData/formatter/SpaceAroundExtendColonInObjects.after.inv.kt

@@ -18,13 +18,13 @@ val a = object: A {}
 val b = object: A {}
 
 class B {
-    class object: A {
+    default object: A {
 
     }
 }
 
 class C {
-    class object:
+    default object:
             A {
 
     }

idea/testData/formatter/SpaceAroundExtendColonInObjects.after.kt

@@ -18,13 +18,13 @@ val a = object :A {}
 val b = object :A {}
 
 class B {
-    class object :A {
+    default object :A {
 
     }
 }
 
 class C {
-    class object :
+    default object :
             A {
 
     }

idea/testData/formatter/SpaceAroundExtendColonInObjects.kt

@@ -18,13 +18,13 @@ val a = object:A {}
 val b = object   :      A {}
 
 class B {
-    class object:A {
+    default object:A {
 
     }
 }
 
 class C {
-    class object   :
+    default object   :
     A {
 
     }