fix

src/suggestions.rs

@@ -71,6 +71,13 @@ impl<'a> HintEnum<'a> {
 
 	#[allow(dead_code)]
 	pub fn is_some(&self) -> bool { !self.is_none() }
+
+	pub fn is_single(&self) -> bool {
+		match self {
+			HintEnum::Single(_) => true,
+			_ => false,
+		}
+	}
 }
 
 include!(concat!(env!("OUT_DIR"), "/codegen.rs"));