Import insertion helper is not confused by inaccessible classes + check visibility of imported declarations through PackageViewDescriptor instead of PackageFragmentDescriptor

idea/testData/addImport/NoConflictingNameForInaccessibleClass1.dependency.kt

@@ -0,0 +1,3 @@
+package dependency;
+
+private class Date {}

idea/testData/addImport/NoConflictingNameForInaccessibleClass1.kt

@@ -0,0 +1,6 @@
+// IMPORT: java.util.ArrayList
+package p
+
+import dependency.*
+
+val d = Date(1, 2)

idea/testData/addImport/NoConflictingNameForInaccessibleClass1.kt.after

@@ -0,0 +1,7 @@
+// IMPORT: java.util.ArrayList
+package p
+
+import dependency.*
+import java.util.*
+
+val d = Date(1, 2)

idea/testData/addImport/NoConflictingNameForInaccessibleClass2.dependency.kt

@@ -0,0 +1,5 @@
+package dependency;
+
+private class Date {}
+
+class X

idea/testData/addImport/NoConflictingNameForInaccessibleClass2.kt

@@ -0,0 +1,6 @@
+// IMPORT: dependency.X
+package p
+
+import java.util.*
+
+val d = Date(1, 2)

idea/testData/addImport/NoConflictingNameForInaccessibleClass2.kt.after

@@ -0,0 +1,7 @@
+// IMPORT: dependency.X
+package p
+
+import java.util.*
+import dependency.*
+
+val d = Date(1, 2)