Function parse_recovering_multi 

pub fn parse_recovering_multi(
    source: &str,
    max_errors: usize,
) -> Result<ParseOutput, RecoverMultiResult>

Parse in multi-error recovery mode: on statement failures, skip to the next sync point (e.g. ;, }, or statement-start keyword) and continue, collecting up to max_errors errors.

Requires the program grammar to use recover_until (used for program and block). Returns Ok(output) on full success; Err(RecoverMultiResult { partial, errors }) when at least one parse error was collected. Use the partial output’s syntax root for a best-effort tree and convert each error to diagnostics for IDE or batch reporting.