Increase visibility: make not available in case of potential exposed visibility problems (see KT-11920)

idea/testData/quickfix/increaseVisibility/privateMemberToInternalWithExposed.kt

@@ -0,0 +1,14 @@
+// "Make bar internal" "false"
+// ACTION: Convert property initializer to getter
+// ERROR: Cannot access 'bar': it is 'private' in 'First'
+
+private data class Data(val x: Int)
+
+class First {
+    // Making it internal exposes 'Data'
+    private fun bar(x: Int) = Data(x)
+}
+
+class Second(f: First) {
+    private val y = f.<caret>bar(42)
+}