KT-3257 Bad diagnostics when trying to instantiate a private class

#KT-3257 Fixed

idea/testData/diagnosticMessage/invisibleMember.kt

@@ -0,0 +1,15 @@
+package foo.bar
+
+class A {
+    private class B
+    public class C private()
+
+    private fun bar() {}
+}
+
+fun foo() {
+    A.B()     // ERROR 1: Cannot access 'B': it is 'private' in 'A'
+    A.C()     // ERROR 2: Cannot access '' : it is 'private' in 'C'
+
+    A().bar() // ERROR 3: Cannot access 'bar' : it is 'private' in 'A'
+}

idea/testData/diagnosticMessage/invisibleMember1.txt

@@ -0,0 +1,2 @@
+<!-- invisibleMember1 -->
+Cannot access 'B': it is 'private' in 'A'

idea/testData/diagnosticMessage/invisibleMember2.txt

@@ -0,0 +1,2 @@
+<!-- invisibleMember2 -->
+Cannot access '<init>': it is 'private' in 'C'

idea/testData/diagnosticMessage/invisibleMember3.txt

@@ -0,0 +1,2 @@
+<!-- invisibleMember3 -->
+Cannot access 'bar': it is 'private' in 'A'