Function check_incompatible_options_for_ci_llvm

pub(crate) fn check_incompatible_options_for_ci_llvm(
    current_config_toml: TomlConfig,
    ci_config_toml: TomlConfig,
) -> Result<(), String>

Compares the current Llvm options against those in the CI LLVM builder and detects any incompatible options. It does this by destructuring the Llvm instance to make sure every Llvm field is covered and not missing.