Rollup merge of #88230 - steffahn:a_an, r=oli-obk

Fix typos “a”→“an”

Fix typos in comments; found using a regex to find some easy instance of incorrect usage of a vs. an.

While automation was used to find these, every change was checked manually.

Changes in submodules get separate PRs:
* https://github.com/rust-lang/stdarch/pull/1201
* https://github.com/rust-lang/cargo/pull/9821
* https://github.com/rust-lang/miri/pull/1874
* https://github.com/rust-lang/rls/pull/1746
* https://github.com/rust-analyzer/rust-analyzer/pull/9984
  _folks @ rust-analyzer are fast at merging…_
  * https://github.com/rust-analyzer/rust-analyzer/pull/9985
  * https://github.com/rust-analyzer/rust-analyzer/pull/9987
  * https://github.com/rust-analyzer/rust-analyzer/pull/9989

_For `clippy`, I don’t know if the changes should better better be moved to a PR to the original repo._

<hr>

This has some overlap with #88226, but neither is a strict superset of the other.

If you want multiple commits, I can split it up; in that case, make sure to suggest a criterion for splitting.

18 files changed, 20 insertions, 20 deletions

diff --git a/src/tools/clippy/clippy_lints/src/formatting.rs b/src/tools/clippy/clippy_lints/src/formatting.rs
index b4cf1971d78..4dd0ffe77ea 100644
--- a/src/tools/clippy/clippy_lints/src/formatting.rs
+++ b/src/tools/clippy/clippy_lints/src/formatting.rs
@@ -164,7 +164,7 @@ fn check_unop(cx: &EarlyContext<'_>, expr: &Expr) {
         if !differing_macro_contexts(lhs.span, rhs.span) && !lhs.span.from_expansion();
         // span between BinOp LHS and RHS
         let binop_span = lhs.span.between(rhs.span);
-        // if RHS is a UnOp
+        // if RHS is an UnOp
         if let ExprKind::Unary(op, ref un_rhs) = rhs.kind;
         // from UnOp operator to UnOp operand
         let unop_operand_span = rhs.span.until(un_rhs.span);
diff --git a/src/tools/clippy/clippy_lints/src/loops/manual_memcpy.rs b/src/tools/clippy/clippy_lints/src/loops/manual_memcpy.rs
index 2525b14e1c5..2296842e86f 100644
--- a/src/tools/clippy/clippy_lints/src/loops/manual_memcpy.rs
+++ b/src/tools/clippy/clippy_lints/src/loops/manual_memcpy.rs
@@ -268,7 +268,7 @@ impl std::ops::Sub<&MinifyingSugg<'static>> for MinifyingSugg<'static> {
     }
 }
 
-/// a wrapper around `MinifyingSugg`, which carries a operator like currying
+/// a wrapper around `MinifyingSugg`, which carries an operator like currying
 /// so that the suggested code become more efficient (e.g. `foo + -bar` `foo - bar`).
 struct Offset {
     value: MinifyingSugg<'static>,
diff --git a/src/tools/clippy/clippy_lints/src/non_copy_const.rs b/src/tools/clippy/clippy_lints/src/non_copy_const.rs
index aa3067876eb..3f9110295fc 100644
--- a/src/tools/clippy/clippy_lints/src/non_copy_const.rs
+++ b/src/tools/clippy/clippy_lints/src/non_copy_const.rs
@@ -122,7 +122,7 @@ fn is_unfrozen<'tcx>(cx: &LateContext<'tcx>, ty: Ty<'tcx>) -> bool {
     // Ignore types whose layout is unknown since `is_freeze` reports every generic types as `!Freeze`,
     // making it indistinguishable from `UnsafeCell`. i.e. it isn't a tool to prove a type is
     // 'unfrozen'. However, this code causes a false negative in which
-    // a type contains a layout-unknown type, but also a unsafe cell like `const CELL: Cell<T>`.
+    // a type contains a layout-unknown type, but also an unsafe cell like `const CELL: Cell<T>`.
     // Yet, it's better than `ty.has_type_flags(TypeFlags::HAS_TY_PARAM | TypeFlags::HAS_PROJECTION)`
     // since it works when a pointer indirection involves (`Cell<*const T>`).
     // Making up a `ParamEnv` where every generic params and assoc types are `Freeze`is another option;
@@ -266,7 +266,7 @@ impl<'tcx> LateLintPass<'tcx> for NonCopyConst {
                 // in other words, lint consts whose value *could* be unfrozen, not definitely is.
                 // This feels inconsistent with how the lint treats generic types,
                 // which avoids linting types which potentially become unfrozen.
-                // One could check whether a unfrozen type have a *frozen variant*
+                // One could check whether an unfrozen type have a *frozen variant*
                 // (like `body_id_opt.map_or_else(|| !has_frozen_variant(...), ...)`),
                 // and do the same as the case of generic types at impl items.
                 // Note that it isn't sufficient to check if it has an enum
@@ -293,7 +293,7 @@ impl<'tcx> LateLintPass<'tcx> for NonCopyConst {
                 }) => {
                     if_chain! {
                         // Lint a trait impl item only when the definition is a generic type,
-                        // assuming a assoc const is not meant to be a interior mutable type.
+                        // assuming an assoc const is not meant to be an interior mutable type.
                         if let Some(of_trait_def_id) = of_trait_ref.trait_def_id();
                         if let Some(of_assoc_item) = specialization_graph::Node::Trait(of_trait_def_id)
                             .item(cx.tcx, impl_item.ident, AssocKind::Const, of_trait_def_id);
diff --git a/src/tools/clippy/clippy_lints/src/ptr_eq.rs b/src/tools/clippy/clippy_lints/src/ptr_eq.rs
index d6d7049fb61..3258c9fb3fe 100644
--- a/src/tools/clippy/clippy_lints/src/ptr_eq.rs
+++ b/src/tools/clippy/clippy_lints/src/ptr_eq.rs
@@ -74,7 +74,7 @@ impl LateLintPass<'_> for PtrEq {
     }
 }
 
-// If the given expression is a cast to an usize, return the lhs of the cast
+// If the given expression is a cast to a usize, return the lhs of the cast
 // E.g., `foo as *const _ as usize` returns `foo as *const _`.
 fn expr_as_cast_to_usize<'tcx>(cx: &LateContext<'tcx>, cast_expr: &'tcx Expr<'_>) -> Option<&'tcx Expr<'tcx>> {
     if cx.typeck_results().expr_ty(cast_expr) == cx.tcx.types.usize {
diff --git a/src/tools/clippy/clippy_lints/src/ranges.rs b/src/tools/clippy/clippy_lints/src/ranges.rs
index 0114a2f97a2..4fa361fedaf 100644
--- a/src/tools/clippy/clippy_lints/src/ranges.rs
+++ b/src/tools/clippy/clippy_lints/src/ranges.rs
@@ -51,7 +51,7 @@ declare_clippy_lint! {
     ///
     /// ### Known problems
     /// Will add unnecessary pair of parentheses when the
-    /// expression is not wrapped in a pair but starts with a opening parenthesis
+    /// expression is not wrapped in a pair but starts with an opening parenthesis
     /// and ends with a closing one.
     /// I.e., `let _ = (f()+1)..(f()+1)` results in `let _ = ((f()+1)..=f())`.
     ///
diff --git a/src/tools/clippy/clippy_lints/src/shadow.rs b/src/tools/clippy/clippy_lints/src/shadow.rs
index b28a37cabd4..b9e317a3cfd 100644
--- a/src/tools/clippy/clippy_lints/src/shadow.rs
+++ b/src/tools/clippy/clippy_lints/src/shadow.rs
@@ -74,7 +74,7 @@ declare_clippy_lint! {
 declare_clippy_lint! {
     /// ### What it does
     /// Checks for bindings that shadow other bindings already in
-    /// scope, either without a initialization or with one that does not even use
+    /// scope, either without an initialization or with one that does not even use
     /// the original value.
     ///
     /// ### Why is this bad?
diff --git a/src/tools/clippy/clippy_lints/src/utils/conf.rs b/src/tools/clippy/clippy_lints/src/utils/conf.rs
index a28b1d78f7d..c192f9094a8 100644
--- a/src/tools/clippy/clippy_lints/src/utils/conf.rs
+++ b/src/tools/clippy/clippy_lints/src/utils/conf.rs
@@ -198,7 +198,7 @@ define_Conf! {
     (enum_variant_name_threshold: u64 = 3),
     /// Lint: LARGE_ENUM_VARIANT.
     ///
-    /// The maximum size of a enum's variant to avoid box suggestion
+    /// The maximum size of an enum's variant to avoid box suggestion
     (enum_variant_size_threshold: u64 = 200),
     /// Lint: VERBOSE_BIT_MASK.
     ///
diff --git a/src/tools/clippy/clippy_utils/src/consts.rs b/src/tools/clippy/clippy_utils/src/consts.rs
index 15c27d1a996..9ba1381da65 100644
--- a/src/tools/clippy/clippy_utils/src/consts.rs
+++ b/src/tools/clippy/clippy_utils/src/consts.rs
@@ -329,7 +329,7 @@ impl<'a, 'tcx> ConstEvalLateContext<'a, 'tcx> {
         vec.iter().map(|elem| self.expr(elem)).collect::<Option<_>>()
     }
 
-    /// Lookup a possibly constant expression from a `ExprKind::Path`.
+    /// Lookup a possibly constant expression from an `ExprKind::Path`.
     fn fetch_path(&mut self, qpath: &QPath<'_>, id: HirId, ty: Ty<'tcx>) -> Option<Constant> {
         let res = self.typeck_results.qpath_res(qpath, id);
         match res {
diff --git a/src/tools/clippy/clippy_utils/src/lib.rs b/src/tools/clippy/clippy_utils/src/lib.rs
index 2777e5bd0c4..32a73984674 100644
--- a/src/tools/clippy/clippy_utils/src/lib.rs
+++ b/src/tools/clippy/clippy_utils/src/lib.rs
@@ -587,7 +587,7 @@ pub fn trait_ref_of_method<'tcx>(cx: &LateContext<'tcx>, hir_id: HirId) -> Optio
 /// For example, if `e` represents the `v[0].a.b[x]`
 /// this method will return a tuple, composed of a `Vec`
 /// containing the `Expr`s for `v[0], v[0].a, v[0].a.b, v[0].a.b[x]`
-/// and a `Expr` for root of them, `v`
+/// and an `Expr` for root of them, `v`
 fn projection_stack<'a, 'hir>(mut e: &'a Expr<'hir>) -> (Vec<&'a Expr<'hir>>, &'a Expr<'hir>) {
     let mut result = vec![];
     let root = loop {
diff --git a/src/tools/clippy/clippy_utils/src/sugg.rs b/src/tools/clippy/clippy_utils/src/sugg.rs
index 3b494e1fc85..65d93e8f86e 100644
--- a/src/tools/clippy/clippy_utils/src/sugg.rs
+++ b/src/tools/clippy/clippy_utils/src/sugg.rs
@@ -434,7 +434,7 @@ pub fn make_assoc(op: AssocOp, lhs: &Sugg<'_>, rhs: &Sugg<'_>) -> Sugg<'static>
         matches!(op, AssocOp::ShiftLeft | AssocOp::ShiftRight)
     }
 
-    /// Returns `true` if the operator is a arithmetic operator
+    /// Returns `true` if the operator is an arithmetic operator
     /// (i.e., `+`, `-`, `*`, `/`, `%`).
     fn is_arith(op: AssocOp) -> bool {
         matches!(
diff --git a/src/tools/clippy/tests/ui/declare_interior_mutable_const/traits.rs b/src/tools/clippy/tests/ui/declare_interior_mutable_const/traits.rs
index 535147ccc64..256a336db82 100644
--- a/src/tools/clippy/tests/ui/declare_interior_mutable_const/traits.rs
+++ b/src/tools/clippy/tests/ui/declare_interior_mutable_const/traits.rs
@@ -117,7 +117,7 @@ impl SelfType for AtomicUsize {
     const WRAPPED_SELF: Option<Self> = Some(AtomicUsize::new(21)); //~ ERROR interior mutable
 }
 
-// Even though a constant contains a generic type, if it also have a interior mutable type,
+// Even though a constant contains a generic type, if it also have an interior mutable type,
 // it should be linted at the definition site.
 trait BothOfCellAndGeneric<T> {
     // this is a false negative in the current implementation.
diff --git a/src/tools/compiletest/src/runtest.rs b/src/tools/compiletest/src/runtest.rs
index dee1d315b3d..f291918225f 100644
--- a/src/tools/compiletest/src/runtest.rs
+++ b/src/tools/compiletest/src/runtest.rs
@@ -1733,7 +1733,7 @@ impl<'test> TestCx<'test> {
     }
 
     /// For each `aux-build: foo/bar` annotation, we check to find the
-    /// file in a `auxiliary` directory relative to the test itself.
+    /// file in an `auxiliary` directory relative to the test itself.
     fn compute_aux_test_paths(&self, rel_ab: &str) -> TestPaths {
         let test_ab = self
             .testpaths
diff --git a/src/tools/rustfmt/src/macros.rs b/src/tools/rustfmt/src/macros.rs
index c8ee590b6cc..a9bc89544d8 100644
--- a/src/tools/rustfmt/src/macros.rs
+++ b/src/tools/rustfmt/src/macros.rs
@@ -401,7 +401,7 @@ fn rewrite_macro_inner(
                 handle_vec_semi(context, shape, arg_vec, macro_name, style)
             } else {
                 // If we are rewriting `vec!` macro or other special macros,
-                // then we can rewrite this as an usual array literal.
+                // then we can rewrite this as a usual array literal.
                 // Otherwise, we must preserve the original existence of trailing comma.
                 let macro_name = &macro_name.as_str();
                 let mut force_trailing_comma = if trailing_comma {
diff --git a/src/tools/rustfmt/src/string.rs b/src/tools/rustfmt/src/string.rs
index 0cb9d817ca2..64ae15672df 100644
--- a/src/tools/rustfmt/src/string.rs
+++ b/src/tools/rustfmt/src/string.rs
@@ -153,7 +153,7 @@ pub(crate) fn rewrite_string<'a>(
     wrap_str(result, fmt.config.max_width(), fmt.shape)
 }
 
-/// Returns the index to the end of the URL if the split at index of the given string includes an
+/// Returns the index to the end of the URL if the split at index of the given string includes a
 /// URL or alike. Otherwise, returns `None`.
 fn detect_url(s: &[&str], index: usize) -> Option<usize> {
     let start = match s[..=index].iter().rposition(|g| is_whitespace(g)) {
diff --git a/src/tools/rustfmt/src/visitor.rs b/src/tools/rustfmt/src/visitor.rs
index 3f251bf7c16..770693d165b 100644
--- a/src/tools/rustfmt/src/visitor.rs
+++ b/src/tools/rustfmt/src/visitor.rs
@@ -36,7 +36,7 @@ pub(crate) struct SnippetProvider {
     big_snippet: Lrc<String>,
     /// A position of the start of `big_snippet`, used as an offset.
     start_pos: usize,
-    /// A end position of the file that this snippet lives.
+    /// An end position of the file that this snippet lives.
     end_pos: usize,
 }
 
diff --git a/src/tools/rustfmt/tests/source/cfg_if/detect/arch/x86.rs b/src/tools/rustfmt/tests/source/cfg_if/detect/arch/x86.rs
index 50d5cfa87c4..4c71a2c6ab9 100644
--- a/src/tools/rustfmt/tests/source/cfg_if/detect/arch/x86.rs
+++ b/src/tools/rustfmt/tests/source/cfg_if/detect/arch/x86.rs
@@ -2,7 +2,7 @@
 //!
 //! The features are detected using the `detect_features` function below.
 //! This function uses the CPUID instruction to read the feature flags from the
-//! CPU and encodes them in an `usize` where each bit position represents
+//! CPU and encodes them in a `usize` where each bit position represents
 //! whether a feature is available (bit is set) or unavaiable (bit is cleared).
 //!
 //! The enum `Feature` is used to map bit positions to feature names, and the
diff --git a/src/tools/rustfmt/tests/target/cfg_if/detect/arch/x86.rs b/src/tools/rustfmt/tests/target/cfg_if/detect/arch/x86.rs
index 9219a4a577f..b985dd8caa1 100644
--- a/src/tools/rustfmt/tests/target/cfg_if/detect/arch/x86.rs
+++ b/src/tools/rustfmt/tests/target/cfg_if/detect/arch/x86.rs
@@ -2,7 +2,7 @@
 //!
 //! The features are detected using the `detect_features` function below.
 //! This function uses the CPUID instruction to read the feature flags from the
-//! CPU and encodes them in an `usize` where each bit position represents
+//! CPU and encodes them in a `usize` where each bit position represents
 //! whether a feature is available (bit is set) or unavaiable (bit is cleared).
 //!
 //! The enum `Feature` is used to map bit positions to feature names, and the
diff --git a/src/tools/tidy/src/style.rs b/src/tools/tidy/src/style.rs
index d8d3dc3ddb1..022a3dfde82 100644
--- a/src/tools/tidy/src/style.rs
+++ b/src/tools/tidy/src/style.rs
@@ -66,7 +66,7 @@ enum LIUState {
     EXP_END,
 }
 
-/// Returns `true` if `line` appears to be a line comment containing an URL,
+/// Returns `true` if `line` appears to be a line comment containing a URL,
 /// possibly with a Markdown link label in front, and nothing else.
 /// The Markdown link label, if present, may not contain whitespace.
 /// Lines of this form are allowed to be overlength, because Markdown