Dropping package facades:

- clashing JVM signature diagnostics should be reported in stable order
- drop tests for clashes vs package facades
- introduce box test for class named as old package facade
- fix some testData

plugins/annotation-collector/testData/collectToFile/inheritedTopLevel/annotations.txt

@@ -2,5 +2,3 @@ p org.test 0
 d 0/InheritedTopLevelKt
 a org.jetbrains.annotations.NotNull 0
 m 0 0/InheritedTopLevelKt getTopLevelProperty
-d 0/TestPackage
-m 0 0/TestPackage getTopLevelProperty