`for x in xs.iter_mut()` -> `for x in &mut xs`

Also `for x in option.iter_mut()` -> `if let Some(ref mut x) = option`

2 files changed, 3 insertions, 3 deletions

diff --git a/src/libsyntax/ext/tt/macro_parser.rs b/src/libsyntax/ext/tt/macro_parser.rs
index ac4a149a3ed..0eec182e0fc 100644
--- a/src/libsyntax/ext/tt/macro_parser.rs
+++ b/src/libsyntax/ext/tt/macro_parser.rs
@@ -444,7 +444,7 @@ pub fn parse(sess: &ParseSess,
         if token_name_eq(&tok, &token::Eof) {
             if eof_eis.len() == 1us {
                 let mut v = Vec::new();
-                for dv in (&mut eof_eis[0]).matches.iter_mut() {
+                for dv in &mut (&mut eof_eis[0]).matches {
                     v.push(dv.pop().unwrap());
                 }
                 return Success(nameize(sess, ms, &v[]));
diff --git a/src/libsyntax/fold.rs b/src/libsyntax/fold.rs
index a1362f5382c..9012ec2114d 100644
--- a/src/libsyntax/fold.rs
+++ b/src/libsyntax/fold.rs
@@ -37,7 +37,7 @@ pub trait MoveMap<T> {
 
 impl<T> MoveMap<T> for Vec<T> {
     fn move_map<F>(mut self, mut f: F) -> Vec<T> where F: FnMut(T) -> T {
-        for p in self.iter_mut() {
+        for p in &mut self {
             unsafe {
                 // FIXME(#5016) this shouldn't need to zero to be safe.
                 ptr::write(p, f(ptr::read_and_zero(p)));
@@ -1117,7 +1117,7 @@ pub fn noop_fold_crate<T: Folder>(Crate {module, attrs, config, mut exported_mac
         }, vec![], span)
     };
 
-    for def in exported_macros.iter_mut() {
+    for def in &mut exported_macros {
         def.id = folder.new_id(def.id);
     }