Store span of method receiver colon tokens
diff --git a/syntax/parse.rs b/syntax/parse.rs
index fe18832..a06affc 100644
--- a/syntax/parse.rs
+++ b/syntax/parse.rs
@@ -562,6 +562,7 @@
lifetime: lifetime.clone(),
mutable: arg.mutability.is_some(),
var: arg.self_token,
+ colon_token: Token,
ty: NamedType::new(Ident::new("Self", arg.self_token.span)),
shorthand: true,
pin_tokens: None,
@@ -607,6 +608,7 @@
lifetime: reference.lifetime,
mutable: reference.mutable,
var: Token),
+ colon_token: arg.colon_token,
ty: ident,
shorthand: false,
pin_tokens: reference.pin_tokens,