pub fn map_predeclared_type(
enable_extensions: &EnableExtensions,
span: Span,
word: &str,
) -> Result<Option<PredeclaredType>, Box<Error<'static>>>pub fn map_predeclared_type(
enable_extensions: &EnableExtensions,
span: Span,
word: &str,
) -> Result<Option<PredeclaredType>, Box<Error<'static>>>