91     let some_note = Some("Some note");  in abort_notes()
97         note = "simple note";  in abort_notes()
102         note = "format {}", "note";  in abort_notes()
104         note =? some_note;  in abort_notes()
105         note =? none_note;  in abort_notes()
107         note = span2 => "spanned simple note";  in abort_notes()
108         note = span2 => "spanned format {}", "note";  in abort_notes()
109         note =? span2 => some_note;  in abort_notes()
110         note =? span2 => none_note;  in abort_notes()
121     let some_note = Some("Some note");  in emit_notes()
127         note = "simple note";  in emit_notes()
132         note = "format {}", "note";  in emit_notes()
134         note =? some_note;  in emit_notes()
135         note =? none_note;  in emit_notes()
137         note = span2 => "spanned simple note";  in emit_notes()
138         note = span2 => "spanned format {}", "note";  in emit_notes()
139         note =? span2 => some_note;  in emit_notes()
140         note =? span2 => none_note;  in emit_notes()