#[no_mangle]
extern "C" fn ICU4XCaseMapper_simple_lowercase(
this: &ICU4XCaseMapper,
ch: DiplomatChar,
) -> DiplomatChar
#[no_mangle]
extern "C" fn ICU4XCaseMapper_simple_lowercase(
this: &ICU4XCaseMapper,
ch: DiplomatChar,
) -> DiplomatChar