Auto merge of #120017 - nnethercote:lint-api, r=oli-obk

Fix naming in the lint API

Methods for emit lints are named very inconsistently. This PR fixes that up.

r? `@compiler-errors`

compiler/rustc_borrowck/src/lib.rs

@@ -415,7 +415,7 @@ fn do_mir_borrowck<'tcx>(
 
         let mut_span = tcx.sess.source_map().span_until_non_whitespace(span);
 
-        tcx.emit_spanned_lint(UNUSED_MUT, lint_root, span, VarNeedNotMut { span: mut_span })
+        tcx.emit_node_span_lint(UNUSED_MUT, lint_root, span, VarNeedNotMut { span: mut_span })
     }
 
     let tainted_by_errors = mbcx.emit_errors();

compiler/rustc_codegen_ssa/src/codegen_attrs.rs

@@ -563,7 +563,7 @@ fn codegen_fn_attrs(tcx: TyCtxt<'_>, did: LocalDefId) -> CodegenFnAttrs {
         if codegen_fn_attrs.inline == InlineAttr::Always {
             if let (Some(no_sanitize_span), Some(inline_span)) = (no_sanitize_span, inline_span) {
                 let hir_id = tcx.local_def_id_to_hir_id(did);
-                tcx.struct_span_lint_hir(
+                tcx.node_span_lint(
                     lint::builtin::INLINE_NO_SANITIZE,
                     hir_id,
                     no_sanitize_span,

compiler/rustc_const_eval/src/const_eval/error.rs

@@ -175,7 +175,7 @@ pub(super) fn lint<'tcx, 'mir, L>(
 {
     let (span, frames) = get_span_and_frames(tcx, machine);
 
-    tcx.emit_spanned_lint(
+    tcx.emit_node_span_lint(
         lint,
         // We use the root frame for this so the crate that defines the const defines whether the
         // lint is emitted.

compiler/rustc_const_eval/src/const_eval/machine.rs

@@ -611,7 +611,7 @@ impl<'mir, 'tcx> interpret::Machine<'mir, 'tcx> for CompileTimeInterpreter<'mir,
                     .0
                     .is_error();
                 let span = ecx.cur_span();
-                ecx.tcx.emit_spanned_lint(
+                ecx.tcx.emit_node_span_lint(
                     rustc_session::lint::builtin::LONG_RUNNING_CONST_EVAL,
                     hir_id,
                     span,

compiler/rustc_hir_analysis/src/astconv/generics.rs

@@ -656,7 +656,7 @@ pub(crate) fn prohibit_explicit_late_bound_lifetimes(
         } else {
             let mut multispan = MultiSpan::from_span(span);
             multispan.push_span_label(span_late, note);
-            tcx.struct_span_lint_hir(
+            tcx.node_span_lint(
                 LATE_BOUND_LIFETIME_ARGUMENTS,
                 args.args[0].hir_id(),
                 multispan,

compiler/rustc_hir_analysis/src/astconv/lint.rs

@@ -240,24 +240,18 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o {
                 diag.stash(self_ty.span, StashKey::TraitMissingMethod);
             } else {
                 let msg = "trait objects without an explicit `dyn` are deprecated";
-                tcx.struct_span_lint_hir(
-                    BARE_TRAIT_OBJECTS,
-                    self_ty.hir_id,
-                    self_ty.span,
-                    msg,
-                    |lint| {
-                        if self_ty.span.can_be_used_for_suggestions()
-                            && !self.maybe_lint_impl_trait(self_ty, lint)
-                        {
-                            lint.multipart_suggestion_verbose(
-                                "use `dyn`",
-                                sugg,
-                                Applicability::MachineApplicable,
-                            );
-                        }
-                        self.maybe_lint_blanket_trait_impl(self_ty, lint);
-                    },
-                );
+                tcx.node_span_lint(BARE_TRAIT_OBJECTS, self_ty.hir_id, self_ty.span, msg, |lint| {
+                    if self_ty.span.can_be_used_for_suggestions()
+                        && !self.maybe_lint_impl_trait(self_ty, lint)
+                    {
+                        lint.multipart_suggestion_verbose(
+                            "use `dyn`",
+                            sugg,
+                            Applicability::MachineApplicable,
+                        );
+                    }
+                    self.maybe_lint_blanket_trait_impl(self_ty, lint);
+                });
             }
         }
     }

compiler/rustc_hir_analysis/src/astconv/mod.rs

@@ -1394,7 +1394,7 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o {
         let ty = self.projected_ty_from_poly_trait_ref(span, assoc_ty_did, assoc_segment, bound);
 
         if let Some(variant_def_id) = variant_resolution {
-            tcx.struct_span_lint_hir(
+            tcx.node_span_lint(
                 AMBIGUOUS_ASSOCIATED_ITEMS,
                 hir_ref_id,
                 span,

compiler/rustc_hir_analysis/src/astconv/object_safety.rs

@@ -220,7 +220,7 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o {
                 let def_id = projection_bound.projection_def_id();
                 def_ids.remove(&def_id);
                 if tcx.generics_require_sized_self(def_id) {
-                    tcx.emit_spanned_lint(
+                    tcx.emit_node_span_lint(
                         UNUSED_ASSOCIATED_TYPE_BOUNDS,
                         hir_id,
                         *span,

compiler/rustc_hir_analysis/src/check/check.rs

@@ -46,7 +46,7 @@ pub fn check_abi(tcx: TyCtxt<'_>, hir_id: hir::HirId, span: Span, abi: Abi) {
             .emit();
         }
         None => {
-            tcx.struct_span_lint_hir(
+            tcx.node_span_lint(
                 UNSUPPORTED_CALLING_CONVENTIONS,
                 hir_id,
                 span,
@@ -183,7 +183,7 @@ fn check_static_inhabited(tcx: TyCtxt<'_>, def_id: LocalDefId) {
         }
     };
     if layout.abi.is_uninhabited() {
-        tcx.struct_span_lint_hir(
+        tcx.node_span_lint(
             UNINHABITED_STATIC,
             tcx.local_def_id_to_hir_id(def_id),
             span,
@@ -1079,7 +1079,7 @@ pub(super) fn check_transparent<'tcx>(tcx: TyCtxt<'tcx>, adt: ty::AdtDef<'tcx>)
             // If there are any non-trivial fields, then there can be no non-exhaustive 1-zsts.
             // Otherwise, it's only an issue if there's >1 non-exhaustive 1-zst.
             if non_trivial_count > 0 || prev_non_exhaustive_1zst {
-                tcx.struct_span_lint_hir(
+                tcx.node_span_lint(
                     REPR_TRANSPARENT_EXTERNAL_PRIVATE_FIELDS,
                     tcx.local_def_id_to_hir_id(adt.did().expect_local()),
                     span,

compiler/rustc_hir_analysis/src/check/compare_impl_item/refine.rs

@@ -283,7 +283,7 @@ fn report_mismatched_rpitit_signature<'tcx>(
         });
 
     let span = unmatched_bound.unwrap_or(span);
-    tcx.emit_spanned_lint(
+    tcx.emit_node_span_lint(
         REFINING_IMPL_TRAIT,
         tcx.local_def_id_to_hir_id(impl_m_def_id.expect_local()),
         span,

compiler/rustc_hir_analysis/src/check/errs.rs

@@ -88,7 +88,7 @@ fn handle_static_mut_ref(
             "shared ",
         )
     };
-    tcx.emit_spanned_lint(
+    tcx.emit_node_span_lint(
         STATIC_MUT_REF,
         hir_id,
         span,

compiler/rustc_hir_analysis/src/check/intrinsicck.rs

@@ -270,7 +270,7 @@ impl<'a, 'tcx> InlineAsmCtxt<'a, 'tcx> {
             if !spans.is_empty() {
                 let (default_modifier, default_result) =
                     reg_class.default_modifier(asm_arch).unwrap();
-                self.tcx.struct_span_lint_hir(
+                self.tcx.node_span_lint(
                     lint::builtin::ASM_SUB_REGISTER,
                     expr.hir_id,
                     spans,

compiler/rustc_hir_analysis/src/check_unused.rs

@@ -40,12 +40,6 @@ fn check_unused_traits(tcx: TyCtxt<'_>, (): ()) {
         } else {
             "unused import".to_owned()
         };
-        tcx.struct_span_lint_hir(
-            lint::builtin::UNUSED_IMPORTS,
-            item.hir_id(),
-            path.span,
-            msg,
-            |_| {},
-        );
+        tcx.node_span_lint(lint::builtin::UNUSED_IMPORTS, item.hir_id(), path.span, msg, |_| {});
     }
 }

compiler/rustc_hir_analysis/src/coherence/orphan.rs

@@ -495,7 +495,7 @@ fn lint_auto_trait_impl<'tcx>(
         return;
     }
 
-    tcx.struct_span_lint_hir(
+    tcx.node_span_lint(
         lint::builtin::SUSPICIOUS_AUTO_TRAIT_IMPLS,
         tcx.local_def_id_to_hir_id(impl_def_id),
         tcx.def_span(impl_def_id),

compiler/rustc_hir_analysis/src/collect/generics_of.rs

@@ -274,7 +274,7 @@ pub(super) fn generics_of(tcx: TyCtxt<'_>, def_id: LocalDefId) -> ty::Generics {
                     Defaults::FutureCompatDisallowed
                         if tcx.features().default_type_parameter_fallback => {}
                     Defaults::FutureCompatDisallowed => {
-                        tcx.struct_span_lint_hir(
+                        tcx.node_span_lint(
                             lint::builtin::INVALID_TYPE_PARAM_DEFAULT,
                             param.hir_id,
                             param.span,

compiler/rustc_hir_analysis/src/collect/resolve_bound_vars.rs

@@ -912,7 +912,7 @@ impl<'a, 'tcx> Visitor<'tcx> for BoundVarContext<'a, 'tcx> {
                             continue;
                         }
                         self.insert_lifetime(lt, ResolvedArg::StaticLifetime);
-                        self.tcx.struct_span_lint_hir(
+                        self.tcx.node_span_lint(
                             lint::builtin::UNUSED_LIFETIMES,
                             lifetime.hir_id,
                             lifetime.ident.span,

compiler/rustc_hir_typeck/src/cast.rs

@@ -587,7 +587,7 @@ impl<'a, 'tcx> CastCheck<'tcx> {
         };
         let expr_ty = fcx.resolve_vars_if_possible(self.expr_ty);
         let cast_ty = fcx.resolve_vars_if_possible(self.cast_ty);
-        fcx.tcx.emit_spanned_lint(
+        fcx.tcx.emit_node_span_lint(
             lint,
             self.expr.hir_id,
             self.span,
@@ -900,7 +900,7 @@ impl<'a, 'tcx> CastCheck<'tcx> {
             let expr_ty = fcx.resolve_vars_if_possible(self.expr_ty);
             let cast_ty = fcx.resolve_vars_if_possible(self.cast_ty);
 
-            fcx.tcx.emit_spanned_lint(
+            fcx.tcx.emit_node_span_lint(
                 lint::builtin::CENUM_IMPL_DROP_CAST,
                 self.expr.hir_id,
                 self.span,
@@ -934,7 +934,7 @@ impl<'a, 'tcx> CastCheck<'tcx> {
         };
 
         let lint = errors::LossyProvenancePtr2Int { expr_ty, cast_ty, sugg };
-        fcx.tcx.emit_spanned_lint(
+        fcx.tcx.emit_node_span_lint(
             lint::builtin::LOSSY_PROVENANCE_CASTS,
             self.expr.hir_id,
             self.span,
@@ -950,7 +950,7 @@ impl<'a, 'tcx> CastCheck<'tcx> {
         let expr_ty = fcx.resolve_vars_if_possible(self.expr_ty);
         let cast_ty = fcx.resolve_vars_if_possible(self.cast_ty);
         let lint = errors::LossyProvenanceInt2Ptr { expr_ty, cast_ty, sugg };
-        fcx.tcx.emit_spanned_lint(
+        fcx.tcx.emit_node_span_lint(
             lint::builtin::FUZZY_PROVENANCE_CASTS,
             self.expr.hir_id,
             self.span,

compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs

@@ -62,7 +62,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                 debug!("warn_if_unreachable: id={:?} span={:?} kind={}", id, span, kind);
 
                 let msg = format!("unreachable {kind}");
-                self.tcx().struct_span_lint_hir(
+                self.tcx().node_span_lint(
                     lint::builtin::UNREACHABLE_CODE,
                     id,
                     span,

compiler/rustc_hir_typeck/src/method/prelude2021.rs

@@ -77,7 +77,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
 
             // Inherent impls only require not relying on autoref and autoderef in order to
             // ensure that the trait implementation won't be used
-            self.tcx.struct_span_lint_hir(
+            self.tcx.node_span_lint(
                 prelude_or_array_lint,
                 self_expr.hir_id,
                 self_expr.span,
@@ -127,7 +127,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
         } else {
             // trait implementations require full disambiguation to not clash with the new prelude
             // additions (i.e. convert from dot-call to fully-qualified call)
-            self.tcx.struct_span_lint_hir(
+            self.tcx.node_span_lint(
                 prelude_or_array_lint,
                 call_expr.hir_id,
                 call_expr.span,
@@ -238,7 +238,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
             return;
         }
 
-        self.tcx.struct_span_lint_hir(
+        self.tcx.node_span_lint(
             RUST_2021_PRELUDE_COLLISIONS,
             expr_id,
             span,

compiler/rustc_hir_typeck/src/method/probe.rs

@@ -440,7 +440,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                 if self.tcx.sess.at_least_rust_2018() {
                     self.dcx().emit_err(MethodCallOnUnknownRawPointee { span });
                 } else {
-                    self.tcx.struct_span_lint_hir(
+                    self.tcx.node_span_lint(
                         lint::builtin::TYVAR_BEHIND_RAW_POINTER,
                         scope_expr_id,
                         span,
@@ -1380,7 +1380,7 @@ impl<'tcx> Pick<'tcx> {
             return;
         }
         let def_kind = self.item.kind.as_def_kind();
-        tcx.struct_span_lint_hir(
+        tcx.node_span_lint(
             lint::builtin::UNSTABLE_NAME_COLLISIONS,
             scope_expr_id,
             span,

compiler/rustc_hir_typeck/src/pat.rs

@@ -1840,7 +1840,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
             &unmentioned_fields.iter().map(|(_, i)| i).collect::<Vec<_>>(),
         );
 
-        self.tcx.struct_span_lint_hir(NON_EXHAUSTIVE_OMITTED_PATTERNS, pat.hir_id, pat.span, "some fields are not explicitly listed", |lint| {
+        self.tcx.node_span_lint(NON_EXHAUSTIVE_OMITTED_PATTERNS, pat.hir_id, pat.span, "some fields are not explicitly listed", |lint| {
         lint.span_label(pat.span, format!("field{} {} not listed", rustc_errors::pluralize!(unmentioned_fields.len()), joined_patterns));
         lint.help(
             "ensure that all fields are mentioned explicitly by adding the suggested fields",

compiler/rustc_hir_typeck/src/upvar.rs

@@ -754,7 +754,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
 
             let closure_hir_id = self.tcx.local_def_id_to_hir_id(closure_def_id);
             let closure_head_span = self.tcx.def_span(closure_def_id);
-            self.tcx.struct_span_lint_hir(
+            self.tcx.node_span_lint(
                 lint::builtin::RUST_2021_INCOMPATIBLE_CLOSURE_CAPTURES,
                 closure_hir_id,
                 closure_head_span,

compiler/rustc_lint/src/array_into_iter.rs

@@ -132,7 +132,7 @@ impl<'tcx> LateLintPass<'tcx> for ArrayIntoIter {
             } else {
                 None
             };
-            cx.emit_spanned_lint(
+            cx.emit_span_lint(
                 ARRAY_INTO_ITER,
                 call.ident.span,
                 ArrayIntoIterDiag { target, suggestion: call.ident.span, sub },

compiler/rustc_lint/src/async_fn_in_trait.rs

@@ -116,7 +116,7 @@ impl<'tcx> LateLintPass<'tcx> for AsyncFnInTrait {
                 def.owner_id.def_id,
                 " + Send",
             );
-            cx.tcx.emit_spanned_lint(
+            cx.tcx.emit_node_span_lint(
                 ASYNC_FN_IN_TRAIT,
                 item.hir_id(),
                 async_span,