Handle matching no switches.

src/parser/lesser_block.rs

@@ -326,6 +326,7 @@ fn _lesser_block_begin<'b, 'g, 'r, 's, 'c>(
     Ok((remaining, name))
 }
 
+#[derive(Debug)]
 struct ExampleSwitches<'s> {
     source: &'s str,
     number_lines: Option<SwitchNumberLines>,
@@ -334,6 +335,7 @@ struct ExampleSwitches<'s> {
     label_format: Option<&'s str>,
 }
 
+#[derive(Debug)]
 enum SwitchState {
     Normal,
     NewLineNumber,