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

compiler/testData/writeFlags/property/classObject/class/delegatedProtectedVar.kt

@@ -10,7 +10,7 @@ class TestDelegate() {
 
 
 class Test {
-  class object {
+  default object {
     protected var prop: Int by TestDelegate()
   }
 }

compiler/testData/writeFlags/property/classObject/class/delegatedPublicVal.kt

@@ -5,7 +5,7 @@ class TestDelegate() {
 }
 
 class Test {
-  class object {
+  default object {
     public val prop: Int by TestDelegate()
   }
 }

compiler/testData/writeFlags/property/classObject/class/internalVal.kt

@@ -1,5 +1,5 @@
 class Test {
-  class object {
+  default object {
     var prop: Int = 0;
   }
 }

compiler/testData/writeFlags/property/classObject/class/internalVar.kt

@@ -1,5 +1,5 @@
 class Test {
-  class object {
+  default object {
     var prop: Int = 0;
   }
 }

compiler/testData/writeFlags/property/classObject/class/internalVarPrivateSet.kt

@@ -1,5 +1,5 @@
 class Test {
-  class object {
+  default object {
     var prop: Int = 0
       private set
   }

compiler/testData/writeFlags/property/classObject/class/noBackingField.kt

@@ -1,5 +1,5 @@
 class Test {
-  class object {
+  default object {
     var prop: Int
       get() {
         return 10

compiler/testData/writeFlags/property/classObject/class/privateVal.kt

@@ -1,5 +1,5 @@
 class Test {
-  class object {
+  default object {
     private val prop = 0;
   }
 }

compiler/testData/writeFlags/property/classObject/class/privateVar.kt

@@ -1,5 +1,5 @@
 class Test {
-  class object {
+  default object {
     private var prop = 0;
   }
 }

compiler/testData/writeFlags/property/classObject/class/protectedVal.kt

@@ -1,5 +1,5 @@
 class Test {
-  class object {
+  default object {
     protected val prop: Int = 0;
   }
 }

compiler/testData/writeFlags/property/classObject/class/protectedVarPrivateSet.kt

@@ -1,5 +1,5 @@
 class Test {
-  class object {
+  default object {
     protected var prop: Int = 0
       private set
   }

compiler/testData/writeFlags/property/classObject/class/publicVal.kt

@@ -1,5 +1,5 @@
 class Test {
-  class object {
+  default object {
     public val prop: Int = 0;
   }
 }

compiler/testData/writeFlags/property/classObject/class/publicValNonDefault.kt

@@ -1,5 +1,5 @@
 class Test {
-  class object {
+  default object {
     public val prop: Int = 0
       get() {
         return $prop

compiler/testData/writeFlags/property/classObject/class/publicVar.kt

@@ -1,5 +1,5 @@
 class Test {
-  class object {
+  default object {
     public var prop: Int = 0;
   }
 }

compiler/testData/writeFlags/property/classObject/class/publicVarNonDefault.kt

@@ -1,5 +1,5 @@
 class Test {
-  class object {
+  default object {
     public var prop: Int = 0
       set(i : Int) {
         $prop = i

compiler/testData/writeFlags/property/classObject/class/publicVarPrivateSet.kt

@@ -1,5 +1,5 @@
 class Test {
-  class object {
+  default object {
     public var prop: Int = 0
       private set
   }

compiler/testData/writeFlags/property/classObject/class/publicVarProtectedSet.kt

@@ -1,5 +1,5 @@
 class Test {
-  class object {
+  default object {
     public var prop: Int = 0
       protected set
   }

compiler/testData/writeFlags/property/classObject/class/publicVarPublicSet.kt

@@ -1,5 +1,5 @@
 class Test {
-  class object {
+  default object {
     public var prop: Int = 0
       public set
   }