Fix access to top-level declarations inside anonymous initializer

#KT-16583 Fixed

compiler/testData/diagnostics/tests/constructorConsistency/initializerWithSecondaryConstructor.kt

@@ -0,0 +1,20 @@
+
+private const val A = 0L
+private val B = 0L
+private fun sample() = 0L
+
+private class PrivateClass
+
+class Foo {
+    var bar: Long = 0
+    private var other: PrivateClass? = null
+
+    init {
+        bar = A
+        bar = B
+        bar = sample()
+        other = PrivateClass()
+    }
+
+    constructor()
+}