Error diagnostic for private classes in inline functions; Fix for KT-7545: IllegalAccessError when accessing private nested class through inlined function from different package

#KT-7545 Fixed

compiler/testData/diagnostics/tests/inline/privateClass.kt

@@ -0,0 +1,25 @@
+// !DIAGNOSTICS: -EXPOSED_PARAMETER_TYPE
+
+private class S public constructor() {
+    fun a() {
+
+    }
+}
+
+internal inline fun x(s: S, z: () -> Unit) {
+    z()
+    <!PRIVATE_CLASS_MEMBER_FROM_INLINE!>S<!>()
+    s.<!PRIVATE_CLASS_MEMBER_FROM_INLINE!>a<!>()
+    test()
+}
+
+private inline fun x2(s: S, z: () -> Unit) {
+    z()
+    S()
+    s.a()
+    test()
+}
+
+private fun test(): S {
+    return S()
+}