Simplify various `Symbol` use points.

Including removing a bunch of unnecessary `.as_str()` calls, and a bunch
of unnecessary sigils.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/libsyntax/feature_gate/check.rs b/src/libsyntax/feature_gate/check.rs
index 97b99b9392f..4389dae2770 100644
--- a/src/libsyntax/feature_gate/check.rs
+++ b/src/libsyntax/feature_gate/check.rs
@@ -730,7 +730,7 @@ pub fn get_features(span_handler: &Handler, krate_attrs: &[ast::Attribute],
             }
 
             if let Some(allowed) = allow_features.as_ref() {
-                if allowed.iter().find(|&f| f == &name.as_str() as &str).is_none() {
+                if allowed.iter().find(|&f| name.as_str() == *f).is_none() {
                     span_err!(span_handler, mi.span(), E0725,
                               "the feature `{}` is not in the list of allowed features",
                               name);