Do not include annotations and KDoc into NO_EXPLICIT_VISIBILITY_IN_API_MODE report range

Rename positioning strategy to better reflect its behavior.
#KT-36021 fixed.

compiler/testData/diagnostics/testsWithExplicitApi/companionObject.kt

@@ -9,5 +9,8 @@ public class Bar2 {
 }
 
 public class Bar3 {
+    /**
+     * Nested object KDoc
+     */
     <!NO_EXPLICIT_VISIBILITY_IN_API_MODE!>object NestedObject<!> {}
 }