Function copy_finding_diagnostics 

pub fn copy_finding_diagnostics(
    findings: &[Finding],
    line_index: &LineIndex,
) -> Vec<Diagnostic>

The value-semantics copy lint’s findings, as the editor shows them — same treatment lgx_finding_diagnostics gives its own, separate finding type: at the mutation the lint is about, with its own severity and message.

The code is copy- and the finding’s kind in kebab case (copy-orphaned-copy), mirroring lgx_finding_code’s own convention.