Update test data for tower resolution algorithm

- locals win
- unary calls to plus/minus are not supported in favor of unaryPlus/unaryMinus
- unqualified nested classes are temporarily reported as unresolved
- function without receiver win against extension function
- explicit import win against star import

compiler/testData/diagnostics/tests/scopes/AmbiguityBetweenRootAndPackage.kt

@@ -1,5 +1,5 @@
 // FILE: root.kt
-fun testFun() = 12
+fun testFun() = "239"
 
 // FILE: otherPackage.kt
 package test
@@ -9,4 +9,4 @@ fun testFun() = 12
 // FILE: using.kt
 import test.*
 
-val t = <!OVERLOAD_RESOLUTION_AMBIGUITY!>testFun<!>()
+val t: String = testFun()