Rename `AddToDiagnostic` as `Subdiagnostic`.

To match `derive(Subdiagnostic)`.

Also rename `add_to_diagnostic{,_with}` as `add_to_diag{,_with}`.

3 files changed, 13 insertions, 13 deletions

diff --git a/compiler/rustc_errors/src/diagnostic.rs b/compiler/rustc_errors/src/diagnostic.rs
index 5793cb13e67..ccaf8c7a235 100644
--- a/compiler/rustc_errors/src/diagnostic.rs
+++ b/compiler/rustc_errors/src/diagnostic.rs
@@ -170,19 +170,19 @@ impl Into<FluentValue<'static>> for DiagArgValue {
 
 /// Trait implemented by error types. This should not be implemented manually. Instead, use
 /// `#[derive(Subdiagnostic)]` -- see [rustc_macros::Subdiagnostic].
-#[rustc_diagnostic_item = "AddToDiagnostic"]
-pub trait AddToDiagnostic
+#[rustc_diagnostic_item = "Subdiagnostic"]
+pub trait Subdiagnostic
 where
     Self: Sized,
 {
     /// Add a subdiagnostic to an existing diagnostic.
-    fn add_to_diagnostic<G: EmissionGuarantee>(self, diag: &mut Diag<'_, G>) {
-        self.add_to_diagnostic_with(diag, |_, m| m);
+    fn add_to_diag<G: EmissionGuarantee>(self, diag: &mut Diag<'_, G>) {
+        self.add_to_diag_with(diag, |_, m| m);
     }
 
     /// Add a subdiagnostic to an existing diagnostic where `f` is invoked on every message used
     /// (to optionally perform eager translation).
-    fn add_to_diagnostic_with<G: EmissionGuarantee, F: SubdiagMessageOp<G>>(
+    fn add_to_diag_with<G: EmissionGuarantee, F: SubdiagMessageOp<G>>(
         self,
         diag: &mut Diag<'_, G>,
         f: F,
@@ -1194,9 +1194,9 @@ impl<'a, G: EmissionGuarantee> Diag<'a, G> {
     pub fn subdiagnostic(
         &mut self,
         dcx: &crate::DiagCtxt,
-        subdiagnostic: impl AddToDiagnostic,
+        subdiagnostic: impl Subdiagnostic,
     ) -> &mut Self {
-        subdiagnostic.add_to_diagnostic_with(self, |diag, msg| {
+        subdiagnostic.add_to_diag_with(self, |diag, msg| {
             let args = diag.args.iter();
             let msg = diag.subdiagnostic_message_to_diagnostic_message(msg);
             dcx.eagerly_translate(msg, args)
diff --git a/compiler/rustc_errors/src/diagnostic_impls.rs b/compiler/rustc_errors/src/diagnostic_impls.rs
index 5f65f35cc30..f90190797ae 100644
--- a/compiler/rustc_errors/src/diagnostic_impls.rs
+++ b/compiler/rustc_errors/src/diagnostic_impls.rs
@@ -1,5 +1,5 @@
 use crate::diagnostic::DiagLocation;
-use crate::{fluent_generated as fluent, AddToDiagnostic};
+use crate::{fluent_generated as fluent, Subdiagnostic};
 use crate::{
     Diag, DiagArgValue, DiagCtxt, Diagnostic, EmissionGuarantee, ErrCode, IntoDiagArg, Level,
     SubdiagMessageOp,
@@ -297,8 +297,8 @@ pub struct SingleLabelManySpans {
     pub spans: Vec<Span>,
     pub label: &'static str,
 }
-impl AddToDiagnostic for SingleLabelManySpans {
-    fn add_to_diagnostic_with<G: EmissionGuarantee, F: SubdiagMessageOp<G>>(
+impl Subdiagnostic for SingleLabelManySpans {
+    fn add_to_diag_with<G: EmissionGuarantee, F: SubdiagMessageOp<G>>(
         self,
         diag: &mut Diag<'_, G>,
         _: F,
diff --git a/compiler/rustc_errors/src/lib.rs b/compiler/rustc_errors/src/lib.rs
index b079de1dde1..99c5bb46d2f 100644
--- a/compiler/rustc_errors/src/lib.rs
+++ b/compiler/rustc_errors/src/lib.rs
@@ -37,9 +37,9 @@ extern crate self as rustc_errors;
 
 pub use codes::*;
 pub use diagnostic::{
-    AddToDiagnostic, BugAbort, DecorateLint, Diag, DiagArg, DiagArgMap, DiagArgName, DiagArgValue,
-    DiagInner, DiagStyledString, Diagnostic, EmissionGuarantee, FatalAbort, IntoDiagArg,
-    StringPart, Subdiag, SubdiagMessageOp,
+    BugAbort, DecorateLint, Diag, DiagArg, DiagArgMap, DiagArgName, DiagArgValue, DiagInner,
+    DiagStyledString, Diagnostic, EmissionGuarantee, FatalAbort, IntoDiagArg, StringPart, Subdiag,
+    SubdiagMessageOp, Subdiagnostic,
 };
 pub use diagnostic_impls::{
     DiagArgFromDisplay, DiagSymbolList, ExpectedLifetimeParameter, IndicateAnonymousLifetime,