Allow to import private members if they are in the same file

#KT-7724 Fixed

compiler/testData/diagnostics/tests/imports/ImportPrivateMember.kt

@@ -0,0 +1,37 @@
+package test
+
+import test.TopLevelClass.NestedClass
+import test.TopLevelClass.NestedClass.InNested
+import test.TopLevelEnum.NestedEnum.NestedEntry
+import test.TopLevelObject.inObject
+import test.TopLevelEnum.E1
+
+private class TopLevelClass {
+    private class NestedClass {
+        class InNested
+    }
+
+    fun test() {
+        InNested()
+    }
+}
+
+private enum class TopLevelEnum(private val e: NestedEnum) {
+    E1(NestedEntry);
+
+    private enum class NestedEnum {
+        NestedEntry;
+    }
+}
+
+private object TopLevelObject {
+    fun inObject() {}
+}
+
+fun testAccess() {
+    <!INVISIBLE_MEMBER!>NestedClass<!>()
+    E1
+    <!INVISIBLE_MEMBER!>InNested<!>()
+    <!INVISIBLE_MEMBER!>NestedEntry<!>
+    inObject()
+}