chore: Fix typos in 'compiler' (batch 3)

compiler/rustc_trait_selection/src/error_reporting/traits/fulfillment_errors.rs

@@ -170,7 +170,7 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> {
                         {
                             return guar;
                         }
-                        // Silence redundant errors on binding acccess that are already
+                        // Silence redundant errors on binding access that are already
                         // reported on the binding definition (#56607).
                         if let Err(guar) = self.fn_arg_obligation(&obligation) {
                             return guar;
@@ -900,7 +900,7 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> {
         let mut suggested = false;
         let mut chain = vec![];
 
-        // The following logic is simlar to `point_at_chain`, but that's focused on associated types
+        // The following logic is similar to `point_at_chain`, but that's focused on associated types
         let mut expr = expr;
         while let hir::ExprKind::MethodCall(path_segment, rcvr_expr, args, span) = expr.kind {
             // Point at every method call in the chain with the `Result` type.

compiler/rustc_trait_selection/src/error_reporting/traits/on_unimplemented.rs

@@ -878,7 +878,7 @@ impl<'tcx> OnUnimplementedFormatString {
             }
         }
         // we cannot return errors from processing the format string as hard error here
-        // as the diagnostic namespace gurantees that malformed input cannot cause an error
+        // as the diagnostic namespace guarantees that malformed input cannot cause an error
         //
         // if we encounter any error while processing we nevertheless want to show it as warning
         // so that users are aware that something is not correct
@@ -986,10 +986,10 @@ impl<'tcx> OnUnimplementedFormatString {
             })
             .collect();
         // we cannot return errors from processing the format string as hard error here
-        // as the diagnostic namespace gurantees that malformed input cannot cause an error
+        // as the diagnostic namespace guarantees that malformed input cannot cause an error
         //
         // if we encounter any error while processing the format string
-        // we don't want to show the potentially half assembled formated string,
+        // we don't want to show the potentially half assembled formatted string,
         // therefore we fall back to just showing the input string in this case
         //
         // The actual parser errors are emitted earlier

compiler/rustc_trait_selection/src/error_reporting/traits/suggestions.rs

@@ -4663,7 +4663,7 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> {
         // because this suggest adding both return type in
         // the `FnSig` and a default return value in the body, so it
         // is not suitable for foreign function without a local body,
-        // and neighter for trait method which may be also implemented
+        // and neither for trait method which may be also implemented
         // in other place, so shouldn't change it's FnSig.
         fn choose_suggest_items<'tcx, 'hir>(
             tcx: TyCtxt<'tcx>,

compiler/rustc_trait_selection/src/traits/coherence.rs

@@ -723,7 +723,7 @@ impl<'a, 'tcx> ProofTreeVisitor<'tcx> for AmbiguityCausesVisitor<'a, 'tcx> {
                     // FIXME: While this matches the behavior of the
                     // old solver, it is not the only way in which the unknowable
                     // candidates *weaken* coherence, they can also force otherwise
-                    // sucessful normalization to be ambiguous.
+                    // successful normalization to be ambiguous.
                     Ok(Certainty::Maybe(_) | Certainty::Yes) => {
                         ambiguity_cause = None;
                         break;

compiler/rustc_trait_selection/src/traits/fulfill.rs

@@ -472,7 +472,7 @@ impl<'a, 'tcx> ObligationProcessor for FulfillProcessor<'a, 'tcx> {
                     };
 
                     match infcx.at(&obligation.cause, obligation.param_env).eq(
-                        // Only really excercised by generic_const_exprs
+                        // Only really exercised by generic_const_exprs
                         DefineOpaqueTypes::Yes,
                         ct_ty,
                         ty,

compiler/rustc_trait_selection/src/traits/select/mod.rs

@@ -991,7 +991,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
                     };
 
                     match self.infcx.at(&obligation.cause, obligation.param_env).eq(
-                        // Only really excercised by generic_const_exprs
+                        // Only really exercised by generic_const_exprs
                         DefineOpaqueTypes::Yes,
                         ct_ty,
                         ty,