Stop using Key trait randomly

Author: compiler-errors

compiler/rustc_const_eval/src/const_eval/mod.rs

@@ -1,9 +1,9 @@
 // Not in interpret to make sure we do not use private implementation details
 
 use rustc_abi::{FieldIdx, VariantIdx};
-use rustc_middle::query::Key;
 use rustc_middle::ty::{self, Ty, TyCtxt};
 use rustc_middle::{bug, mir};
+use rustc_span::DUMMY_SP;
 use tracing::instrument;
 
 use crate::interpret::InterpCx;
@@ -71,8 +71,7 @@ pub fn tag_for_variant_provider<'tcx>(
     let (ty, variant_index) = key.value;
     assert!(ty.is_enum());
 
-    let ecx =
-        InterpCx::new(tcx, ty.default_span(tcx), key.typing_env, crate::const_eval::DummyMachine);
+    let ecx = InterpCx::new(tcx, DUMMY_SP, key.typing_env, crate::const_eval::DummyMachine);
 
     let layout = ecx.layout_of(ty).unwrap();
     ecx.tag_for_variant(layout, variant_index).unwrap().map(|(tag, _tag_field)| tag)

compiler/rustc_lint/src/map_unit_fn.rs

@@ -1,5 +1,4 @@
 use rustc_hir::{Expr, ExprKind, HirId, Stmt, StmtKind};
-use rustc_middle::query::Key;
 use rustc_middle::ty::{self, Ty};
 use rustc_session::{declare_lint, declare_lint_pass};
 
@@ -69,7 +68,7 @@ impl<'tcx> LateLintPass<'tcx> for MapUnitFn {
                                         .span_of_impl(*id)
                                         .unwrap_or(default_span),
                                     argument_label: args[0].span,
-                                    map_label: arg_ty.default_span(cx.tcx),
+                                    map_label: path.ident.span,
                                     suggestion: path.ident.span,
                                     replace: "for_each".to_string(),
                                 },
@@ -88,7 +87,7 @@ impl<'tcx> LateLintPass<'tcx> for MapUnitFn {
                                         .span_of_impl(*id)
                                         .unwrap_or(default_span),
                                     argument_label: args[0].span,
-                                    map_label: arg_ty.default_span(cx.tcx),
+                                    map_label: path.ident.span,
                                     suggestion: path.ident.span,
                                     replace: "for_each".to_string(),
                                 },