migrate lifetime too

Author: compiler-errors

compiler/rustc_hir_analysis/messages.ftl

@@ -102,6 +102,9 @@ hir_analysis_invalid_union_field_sugg =
 hir_analysis_late_bound_const_in_apit = `impl Trait` can only mention const parameters from an fn or impl
     .label = const parameter declared here
 
+hir_analysis_late_bound_lifetime_in_apit = `impl Trait` can only mention lifetimes from an fn or impl
+    .label = lifetime declared here
+
 hir_analysis_late_bound_type_in_apit = `impl Trait` can only mention type parameters from an fn or impl
     .label = type parameter declared here
 

compiler/rustc_hir_analysis/src/collect/resolve_bound_vars.rs

@@ -1344,12 +1344,10 @@ impl<'a, 'tcx> BoundVarContext<'a, 'tcx> {
                 Scope::Binder {
                     where_bound_origin: Some(hir::PredicateOrigin::ImplTrait), ..
                 } => {
-                    let mut err = self.tcx.sess.struct_span_err(
-                        lifetime_ref.ident.span,
-                        "`impl Trait` can only mention lifetimes bound at the fn or impl level",
-                    );
-                    err.span_note(self.tcx.def_span(region_def_id), "lifetime declared here");
-                    err.emit();
+                    self.tcx.sess.emit_err(errors::LateBoundInApit::Lifetime {
+                        span: lifetime_ref.ident.span,
+                        param_span: self.tcx.def_span(region_def_id),
+                    });
                     return;
                 }
                 Scope::Root { .. } => break,

compiler/rustc_hir_analysis/src/errors.rs

@@ -892,4 +892,11 @@ pub(crate) enum LateBoundInApit {
         #[label]
         param_span: Span,
     },
+    #[diag(hir_analysis_late_bound_lifetime_in_apit)]
+    Lifetime {
+        #[primary_span]
+        span: Span,
+        #[label]
+        param_span: Span,
+    },
 }

tests/ui/impl-trait/universal_wrong_hrtb.rs

@@ -3,6 +3,6 @@ trait Trait<'a> {
 }
 
 fn test_argument_position(x: impl for<'a> Trait<'a, Assoc = impl Copy + 'a>) {}
-//~^ ERROR `impl Trait` can only mention lifetimes bound at the fn or impl level
+//~^ ERROR `impl Trait` can only mention lifetimes from an fn or impl
 
 fn main() {}

tests/ui/impl-trait/universal_wrong_hrtb.stderr

@@ -1,14 +1,8 @@
-error: `impl Trait` can only mention lifetimes bound at the fn or impl level
+error: `impl Trait` can only mention lifetimes from an fn or impl
   --> $DIR/universal_wrong_hrtb.rs:5:73
    |
 LL | fn test_argument_position(x: impl for<'a> Trait<'a, Assoc = impl Copy + 'a>) {}
-   |                                                                         ^^
-   |
-note: lifetime declared here
-  --> $DIR/universal_wrong_hrtb.rs:5:39
-   |
-LL | fn test_argument_position(x: impl for<'a> Trait<'a, Assoc = impl Copy + 'a>) {}
-   |                                       ^^
+   |                                       -- lifetime declared here         ^^
 
 error: aborting due to previous error