fn get_codegen_sysroot(
early_dcx: &EarlyDiagCtxt,
sysroot: &Path,
backend_name: &str,
) -> fn() -> Box<dyn CodegenBackend>
fn get_codegen_sysroot(
early_dcx: &EarlyDiagCtxt,
sysroot: &Path,
backend_name: &str,
) -> fn() -> Box<dyn CodegenBackend>