2 files changed, 5 insertions, 7 deletions
diff --git a/compiler/rustc_session/src/parse.rs b/compiler/rustc_session/src/parse.rs
index c629c9884c8..16036e5be38 100644
--- a/compiler/rustc_session/src/parse.rs
+++ b/compiler/rustc_session/src/parse.rs
@@ -15,8 +15,7 @@ use rustc_data_structures::fx::{FxHashMap, FxHashSet};
 use rustc_data_structures::sync::{AppendOnlyVec, Lock, Lrc};
 use rustc_errors::{emitter::SilentEmitter, DiagCtxt};
 use rustc_errors::{
-    fallback_fluent_bundle, Diagnostic, DiagnosticBuilder, DiagnosticId, DiagnosticMessage,
-    MultiSpan, StashKey,
+    fallback_fluent_bundle, Diagnostic, DiagnosticBuilder, DiagnosticMessage, MultiSpan, StashKey,
 };
 use rustc_feature::{find_feature_issue, GateIssue, UnstableFeatures};
 use rustc_span::edition::Edition;
@@ -148,7 +147,7 @@ pub fn feature_warn_issue(
     // Decorate this as a future-incompatibility lint as in rustc_middle::lint::struct_lint_level
     let lint = UNSTABLE_SYNTAX_PRE_EXPANSION;
     let future_incompatible = lint.future_incompatible.as_ref().unwrap();
-    err.code(DiagnosticId::Lint { name: lint.name_lower(), has_future_breakage: false });
+    err.is_lint(lint.name_lower(), /* has_future_breakage */ false);
     err.warn(lint.desc);
     err.note(format!("for more information, see {}", future_incompatible.reference));
 
diff --git a/compiler/rustc_session/src/session.rs b/compiler/rustc_session/src/session.rs
index 1c3d5a3cb88..3f6c70a18d3 100644
--- a/compiler/rustc_session/src/session.rs
+++ b/compiler/rustc_session/src/session.rs
@@ -20,9 +20,8 @@ use rustc_errors::emitter::{DynEmitter, HumanEmitter, HumanReadableErrorType};
 use rustc_errors::json::JsonEmitter;
 use rustc_errors::registry::Registry;
 use rustc_errors::{
-    error_code, fallback_fluent_bundle, DiagCtxt, DiagnosticBuilder, DiagnosticId,
-    DiagnosticMessage, ErrorGuaranteed, FatalAbort, FluentBundle, IntoDiagnostic,
-    LazyFallbackBundle, TerminalUrl,
+    error_code, fallback_fluent_bundle, DiagCtxt, DiagnosticBuilder, DiagnosticMessage,
+    ErrorGuaranteed, FatalAbort, FluentBundle, IntoDiagnostic, LazyFallbackBundle, TerminalUrl,
 };
 use rustc_macros::HashStable_Generic;
 pub use rustc_span::def_id::StableCrateId;
@@ -906,7 +905,7 @@ impl Session {
         CodegenUnits::Default(16)
     }
 
-    pub fn teach(&self, code: &DiagnosticId) -> bool {
+    pub fn teach(&self, code: &str) -> bool {
         self.opts.unstable_opts.teach && self.dcx().must_teach(code)
     }