KT-46146 'protected' is unavailable for primary constructors

Prior to this commit intention to change primary constructor visibility
to 'protected' was filtered out.

idea/testData/quickfix/specifyOverrideExplicitly/notPossible.kt

@@ -2,6 +2,7 @@
 // ACTION: Create test
 // ACTION: Make primary constructor internal
 // ACTION: Make primary constructor private
+// ACTION: Make primary constructor protected
 // ACTION: Enable a trailing comma by default in the formatter
 // ACTION: Extract 'C' from current file
 // ACTION: Rename file to C.kt