Function nativePluginFor

src/ast/native-loader.ts:232–245

(
  lang: NativeLang,
  kind: NativeKind,
  r: NativeAstResolved
)

 * diagnostic (deduped per lang+kind). Call once per sub-detector, not per file.
 */
export function nativePluginFor(
  lang: NativeLang,
  kind: NativeKind,
  r: NativeAstResolved
): NativePlugin | null {
  if (!nativeEnabledFor(r, lang)) return null;

  const plugin = getNativePlugin(lang, r);
  if (!plugin || typeof plugin[kind] !== "function") {
    if (r.mode === "strict") recordUnavailable(r, lang, kind);
    return null;
  }
  return plugin;
}

/** Record a per-file parse failure (strict mode). */
export function recordParseError(