Move methods from Map to TyCtxt, part 5.

This eliminates all methods on `Map`. Actually removing `Map` will occur
in a follow-up PR.

compiler/rustc_lint/src/impl_trait_overcaptures.rs

@@ -392,7 +392,7 @@ where
                         }
                         _ => {
                             self.tcx.dcx().span_delayed_bug(
-                                self.tcx.hir().span(arg.hir_id()),
+                                self.tcx.hir_span(arg.hir_id()),
                                 "no valid for captured arg",
                             );
                         }

compiler/rustc_lint/src/types.rs

@@ -1403,7 +1403,7 @@ impl<'a, 'tcx> ImproperCTypesVisitor<'a, 'tcx> {
             CItemKind::Definition => "fn",
         };
         let span_note = if let ty::Adt(def, _) = ty.kind()
-            && let Some(sp) = self.cx.tcx.hir().span_if_local(def.did())
+            && let Some(sp) = self.cx.tcx.hir_span_if_local(def.did())
         {
             Some(sp)
         } else {