Rollup merge of rust-lang#125730 - mu001999-contrib:clippy-fix, r=oli…

…-obk

Apply `x clippy --fix` and `x fmt` on Rustc

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Just run `x clippy --fix` and `x fmt`, and remove some changes like `impl Default`.

proc_macro/src/bridge/fxhash.rs

@@ -69,7 +69,7 @@ impl Hasher for FxHasher {
             hash.add_to_hash(u16::from_ne_bytes(bytes[..2].try_into().unwrap()) as usize);
             bytes = &bytes[2..];
         }
-        if (size_of::<usize>() > 1) && bytes.len() >= 1 {
+        if (size_of::<usize>() > 1) && !bytes.is_empty() {
             hash.add_to_hash(bytes[0] as usize);
         }
         self.hash = hash.hash;

proc_macro/src/bridge/rpc.rs

@@ -264,9 +264,9 @@ impl From<Box<dyn Any + Send>> for PanicMessage {
     }
 }
 
-impl Into<Box<dyn Any + Send>> for PanicMessage {
-    fn into(self) -> Box<dyn Any + Send> {
-        match self {
+impl From<PanicMessage> for Box<dyn Any + Send> {
+    fn from(val: PanicMessage) -> Self {
+        match val {
             PanicMessage::StaticStr(s) => Box::new(s),
             PanicMessage::String(s) => Box::new(s),
             PanicMessage::Unknown => {

test/src/cli.rs

@@ -200,7 +200,7 @@ Test Attributes:
 pub fn parse_opts(args: &[String]) -> Option<OptRes> {
     // Parse matches.
     let opts = optgroups();
-    let binary = args.get(0).map(|c| &**c).unwrap_or("...");
+    let binary = args.first().map(|c| &**c).unwrap_or("...");
     let args = args.get(1..).unwrap_or(args);
     let matches = match opts.parse(args) {
         Ok(m) => m,

test/src/term/terminfo/parm.rs

@@ -524,7 +524,7 @@ fn format(val: Param, op: FormatOp, flags: Flags) -> Result<Vec<u8>, String> {
         } else {
             let mut s_ = Vec::with_capacity(flags.width);
             s_.extend(repeat(b' ').take(n));
-            s_.extend(s.into_iter());
+            s_.extend(s);
             s = s_;
         }
     }