1. There where some tests with (details)
Commit f717ec739b9788c1cd21588b09a9add26cea6566 by marcus.denker
There where some tests with

<compilerOptions: #(- #optionReadOnlyLiterals)>

But they can be easily rewritten to be green even with

<compilerOptions: #(+ #optionReadOnlyLiterals)>

This PR fixes the test and then removes the compilerOptions: pragma
The file was modifiedsrc/Flashback-Decompiler-Tests/ (diff)
The file was modifiedsrc/ReflectionMirrors-Primitives-Tests/ (diff)
The file was modifiedsrc/Collections-Strings-Tests/ (diff)