fn test_irparse_for_optimized_ir<O: Optimize<TranslationUnit>>(
ir: TranslationUnit,
temp_file_path: &Path,
opt: O,
) -> TranslationUnit
fn test_irparse_for_optimized_ir<O: Optimize<TranslationUnit>>(
ir: TranslationUnit,
temp_file_path: &Path,
opt: O,
) -> TranslationUnit