fn eval_if<E: From<IfEvalError>>(
definition_file_id: FileId,
body: &SyntaxNode<PreprocessorLang>,
current_state: &ProcessorState,
location: &ExpandLocation,
) -> (bool, Option<E>)
fn eval_if<E: From<IfEvalError>>(
definition_file_id: FileId,
body: &SyntaxNode<PreprocessorLang>,
current_state: &ProcessorState,
location: &ExpandLocation,
) -> (bool, Option<E>)