tests for comparison of changes in classes

jps-plugin/testData/comparison/classMembersOnlyChanged/classWithCompanionObjectChanged/new.kt

@@ -0,0 +1,20 @@
+package test
+
+class ClassWithAddedCompanionObject {
+    public fun unchangedFun() {}
+    companion object {}
+}
+
+class ClassWithRemovedCompanionObject {
+    public fun unchangedFun() {}
+}
+
+class ClassWithChangedCompanionObject {
+    public fun unchangedFun() {}
+    companion object SecondName {}
+}
+
+class ClassWithChangedVisibilityForCompanionObject {
+    public fun unchangedFun() {}
+    private companion object {}
+}

jps-plugin/testData/comparison/classMembersOnlyChanged/classWithCompanionObjectChanged/old.kt

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+package test
+
+class ClassWithAddedCompanionObject {
+    public fun unchangedFun() {}
+}
+
+class ClassWithRemovedCompanionObject {
+    public fun unchangedFun() {}
+    companion object {}
+}
+
+class ClassWithChangedCompanionObject {
+    public fun unchangedFun() {}
+    companion object FirstName {}
+}
+
+class ClassWithChangedVisibilityForCompanionObject {
+    public fun unchangedFun() {}
+    public companion object {}
+}
+

jps-plugin/testData/comparison/classMembersOnlyChanged/classWithCompanionObjectChanged/result.out

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+REMOVED: class ClassWithChangedCompanionObject$FirstName.class
+REMOVED: class ClassWithRemovedCompanionObject$Companion.class
+ADDED: class ClassWithAddedCompanionObject$Companion.class
+ADDED: class ClassWithChangedCompanionObject$SecondName.class
+changes in test/ClassWithAddedCompanionObject: MEMBERS
+    [Companion]
+changes in test/ClassWithChangedCompanionObject: MEMBERS
+    [FirstName, SecondName]
+changes in test/ClassWithChangedVisibilityForCompanionObject.Companion: CLASS_SIGNATURE
+changes in test/ClassWithChangedVisibilityForCompanionObject: NONE
+changes in test/ClassWithRemovedCompanionObject: MEMBERS
+    [Companion]