message: Add ( and ) to the list of chars in ignored lines.
diff: @@ -222,8 +222,8 @@ impl<'a> CoverageVisitor<'a> {
  for line in &l.lines {
  let pb = PathBuf::from(self.codemap.span_to_filename(span) as String);
  if let Some(s) = l.file.get_line(line.line_index) {
  - // Is this one of those pointless {, } or }; only lines?
  - if !s.chars().any(|x| !"{}[]?;\t ,".contains(x)) {
  + // Is this one of those pointless {, } or }; or )?; only lines?
  + if !s.chars().any(|x| !"(){}[]?;\t ,".contains(x)) {
  self.lines.push((pb, line.line_index + 1));
  }
  }
  