jvm-abi-gen: Remove effectively private classes from ABI

#KT-64590 Fixed

plugins/jvm-abi-gen/testData/compare/multifileClass/base/test.kt

@@ -0,0 +1,5 @@
+@file:JvmMultifileClass
+@file:JvmName("Multifile")
+package test
+
+fun f() {}

plugins/jvm-abi-gen/testData/compare/multifileClass/differentAbi/test.kt

@@ -0,0 +1,5 @@
+@file:JvmMultifileClass
+@file:JvmName("Multifile")
+package test
+
+// Removal of function from a multi-file class should result in a different ABI even though the multi-file part class is package-private.

plugins/jvm-abi-gen/testData/compare/nestedPrivateClasses/base/test.kt

@@ -0,0 +1,9 @@
+package test
+
+class Class {
+    private companion object {}
+    private class PrivateClass {
+        companion object {}
+        class NestedClass
+    }
+}

plugins/jvm-abi-gen/testData/compare/nestedPrivateClasses/directives.txt

@@ -0,0 +1 @@
+// REMOVE_PRIVATE_CLASSES

plugins/jvm-abi-gen/testData/compare/nestedPrivateClasses/sameAbi/test.kt

@@ -0,0 +1,3 @@
+package test
+
+class Class

plugins/jvm-abi-gen/testData/compare/privateInterfaceDefaultImplementation/base/test.kt

@@ -0,0 +1,7 @@
+package test
+
+class SomeClass {
+    private interface PrivateInterface {
+        fun d() = "Default implementation of removed interface should not affect abi."
+    }
+}

plugins/jvm-abi-gen/testData/compare/privateInterfaceDefaultImplementation/directives.txt

@@ -0,0 +1 @@
+// REMOVE_PRIVATE_CLASSES

plugins/jvm-abi-gen/testData/compare/privateInterfaceDefaultImplementation/sameAbi/test.kt

@@ -0,0 +1,7 @@
+package test
+
+class SomeClass {
+    private interface PrivateInterface {
+        fun d(): String
+    }
+}

plugins/jvm-abi-gen/testData/compare/privateOuterClassForEffectivelyVisibleInterface/base/test.kt

@@ -0,0 +1,9 @@
+package test
+
+class Outer {
+    class Public : NestedClass.I
+
+    private class NestedClass {
+        interface I
+    }
+}

plugins/jvm-abi-gen/testData/compare/privateOuterClassForEffectivelyVisibleInterface/directives.txt

@@ -0,0 +1 @@
+// REMOVE_PRIVATE_CLASSES

plugins/jvm-abi-gen/testData/compare/privateOuterClassForEffectivelyVisibleInterface/sameAbi/test.kt

@@ -0,0 +1,11 @@
+package test
+
+class Outer {
+    class Public : NestedClass.I
+
+    private class NestedClass {
+        interface I
+
+        fun someFun() = Unit
+    }
+}

plugins/jvm-abi-gen/testData/compare/privateTopLevelClasses/base/test.kt

@@ -0,0 +1,5 @@
+package test
+
+class Class
+
+private class PrivateClass

plugins/jvm-abi-gen/testData/compare/privateTopLevelClasses/directives.txt

@@ -0,0 +1 @@
+// REMOVE_PRIVATE_CLASSES

plugins/jvm-abi-gen/testData/compare/privateTopLevelClasses/sameAbi/test.kt

@@ -0,0 +1,3 @@
+package test
+
+class Class

plugins/jvm-abi-gen/testData/compare/privateTopLevelClassesWithoutOption/base/test.kt

@@ -0,0 +1,5 @@
+package test
+
+class Class
+
+private class PrivateClass

plugins/jvm-abi-gen/testData/compare/privateTopLevelClassesWithoutOption/differentAbi/test.kt

@@ -0,0 +1,3 @@
+package test
+
+class Class