resolve: Scope visiting doesn't need an Ident

compiler/rustc_span/src/hygiene.rs

@@ -622,6 +622,10 @@ impl SyntaxContext {
     pub fn dollar_crate_name(self) -> Symbol {
         HygieneData::with(|data| data.syntax_context_data[self.0 as usize].dollar_crate_name)
     }
+
+    pub fn edition(self) -> Edition {
+        self.outer_expn_data().edition
+    }
 }
 
 impl fmt::Debug for SyntaxContext {

compiler/rustc_span/src/lib.rs

@@ -300,6 +300,10 @@ pub struct SpanData {
 }
 
 impl SpanData {
+    #[inline]
+    pub fn span(&self) -> Span {
+        Span::new(self.lo, self.hi, self.ctxt)
+    }
     #[inline]
     pub fn with_lo(&self, lo: BytePos) -> Span {
         Span::new(lo, self.hi, self.ctxt)
@@ -468,7 +472,7 @@ impl Span {
 
     /// Edition of the crate from which this span came.
     pub fn edition(self) -> edition::Edition {
-        self.ctxt().outer_expn_data().edition
+        self.ctxt().edition()
     }
 
     #[inline]