Function preferCallSiteFile

src/resolution/name-matcher.ts:523–532

(nodes: Node[], callSiteFile: string)

 * No-op when there are <2 candidates or none share the call site's file.
 */
export function preferCallSiteFile(nodes: Node[], callSiteFile: string): Node[] {
  if (nodes.length < 2) return nodes;
  const same: Node[] = [];
  const other: Node[] = [];
  for (const n of nodes) {
    if (n.filePath === callSiteFile) same.push(n);
    else other.push(n);
  }
  return same.length ? [...same, ...other] : nodes;
}

// Exported for the precedence unit tests (#1079): they assert the
// preferredFqn → same-file → matches[0] ordering directly.