Auto merge of #55347 - pietroalbini:rollup, r=pietroalbini

Rollup of 22 pull requests

Successful merges:

 - #53507 (Add doc for impl From for Waker)
 - #53931 (Gradually expanding libstd's keyword documentation)
 - #54965 (update tcp stream documentation)
 - #54977 (Accept `Option<Box<$t:ty>>` in macro argument)
 - #55138 (in which unused-parens suggestions heed what the user actually wrote)
 - #55173 (Suggest appropriate syntax on missing lifetime specifier in return type)
 - #55200 (Documents `From` implementations for `Stdio`)
 - #55245 (submodules: update clippy from 5afdf8b7 to b1d03437)
 - #55247 (Clarified code example in char primitive doc)
 - #55251 (Fix a typo in the documentation of RangeInclusive)
 - #55253 (only issue "variant of the expected type" suggestion for enums)
 - #55254 (Correct trailing ellipsis in name_from_pat)
 - #55269 (fix typos in various places)
 - #55282 (Remove redundant clone)
 - #55285 (Do some copy editing on the release notes)
 - #55291 (Update stdsimd submodule)
 - #55296 (Set RUST_BACKTRACE=0 for rustdoc-ui/failed-doctest-output.rs)
 - #55306 (Regression test for #54478.)
 - #55328 (Fix doc for new copysign functions)
 - #55340 (Operands no longer appear in places)
 - #55345 (Remove is_null)
 - #55348 (Update RELEASES.md after destabilization of non_modrs_mods)

Failed merges:

r? @ghost

3 files changed, 5 insertions, 4 deletions

diff --git a/src/libsyntax/config.rs b/src/libsyntax/config.rs
index e611eb86dc1..d8fb20d4250 100644
--- a/src/libsyntax/config.rs
+++ b/src/libsyntax/config.rs
@@ -96,7 +96,7 @@ impl<'a> StripUnconfigured<'a> {
     /// when the configuration predicate is true, or otherwise expand into an
     /// empty list of attributes.
     ///
-    /// Gives a compiler warning when the `cfg_attr` contains no attribtes and
+    /// Gives a compiler warning when the `cfg_attr` contains no attributes and
     /// is in the original source file. Gives a compiler error if the syntax of
     /// the attribute is incorrect
     fn process_cfg_attr(&mut self, attr: ast::Attribute) -> Vec<ast::Attribute> {
@@ -138,7 +138,7 @@ impl<'a> StripUnconfigured<'a> {
         };
 
         // Check feature gate and lint on zero attributes in source. Even if the feature is gated,
-        // we still compute as if it wasn't, since the emitted error will stop compilation futher
+        // we still compute as if it wasn't, since the emitted error will stop compilation further
         // along the compilation.
         match (expanded_attrs.len(), gate_cfg_attr_multi) {
             (0, false) => {
diff --git a/src/libsyntax/ext/tt/macro_rules.rs b/src/libsyntax/ext/tt/macro_rules.rs
index 87ade278c68..805aa9bef22 100644
--- a/src/libsyntax/ext/tt/macro_rules.rs
+++ b/src/libsyntax/ext/tt/macro_rules.rs
@@ -905,7 +905,8 @@ fn is_in_follow(tok: &quoted::TokenTree, frag: &str) -> Result<bool, (String, &'
             "path" | "ty" => match *tok {
                 TokenTree::Token(_, ref tok) => match *tok {
                     OpenDelim(token::DelimToken::Brace) | OpenDelim(token::DelimToken::Bracket) |
-                    Comma | FatArrow | Colon | Eq | Gt | Semi | BinOp(token::Or) => Ok(true),
+                    Comma | FatArrow | Colon | Eq | Gt | BinOp(token::Shr) | Semi |
+                    BinOp(token::Or) => Ok(true),
                     Ident(i, false) if i.name == "as" || i.name == "where" => Ok(true),
                     _ => Ok(false)
                 },
diff --git a/src/libsyntax/fold.rs b/src/libsyntax/fold.rs
index 95a2298ca75..18d5970462f 100644
--- a/src/libsyntax/fold.rs
+++ b/src/libsyntax/fold.rs
@@ -965,7 +965,7 @@ pub fn noop_fold_item_kind<T: Folder>(i: ItemKind, folder: &mut T) -> ItemKind {
             polarity,
             defaultness,
             folder.fold_generics(generics),
-            ifce.map(|trait_ref| folder.fold_trait_ref(trait_ref.clone())),
+            ifce.map(|trait_ref| folder.fold_trait_ref(trait_ref)),
             folder.fold_ty(ty),
             impl_items.move_flat_map(|item| folder.fold_impl_item(item)),
         ),