default -> companion: replace all mentions of default and default object

idea/testData/inspections/unusedSymbol/object/defaultObjectUnused.kt

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

idea/testData/inspections/unusedSymbol/object/defaultObjectUsed.kt

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

idea/testData/inspections/unusedSymbol/object/defaultObjectUsedInJava.java

@@ -1,4 +1,4 @@
-import defaultObjectUsedInJava.*
+import companionObjectUsedInJava.*
 
 class JavaUsage {
     public static void main(String[] args) {

idea/testData/inspections/unusedSymbol/object/defaultObjectUsedInJava.kt

@@ -1,28 +1,28 @@
-package defaultObjectUsedInJava
+package companionObjectUsedInJava
 
 import kotlin.platform.platformStatic
 
 class A {
-    default object {
+    companion object {
         val CONST = 42
     }
 }
 
 class B {
-    default object {
+    companion object {
         platformStatic fun foo() {
         }
     }
 }
 
 class C {
-    default object Named {
+    companion object Named {
         val CONST = 42
     }
 }
 
 class D {
-    default object Named {
+    companion object Named {
         platformStatic fun foo() {
         }
     }

idea/testData/inspections/unusedSymbol/object/inspectionData/expected.xml

@@ -38,7 +38,7 @@
     <module>light_idea_test_case</module>
     <entry_point TYPE="file" FQNAME="temp:///src/defaultObjectUnused.kt" />
     <problem_class severity="WARNING" attribute_key="NOT_USED_ELEMENT_ATTRIBUTES">Unused Symbol</problem_class>
-    <description>Object 'Default' is never used</description>
+    <description>Object 'Companion' is never used</description>
   </problem>
 
   <problem>