Add an indirection for closures in `hir::ExprKind`

This helps bring `hir::Expr` size down, `Closure` was the biggest
variant, especially after `for<>` additions.

3 files changed, 3 insertions, 3 deletions

diff --git a/compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs b/compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs
index 8efefd476ab..6de03dcee15 100644
--- a/compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs
+++ b/compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs
@@ -1084,7 +1084,7 @@ impl<'a, 'tcx> InferCtxtExt<'tcx> for InferCtxt<'a, 'tcx> {
         let hir = self.tcx.hir();
         Some(match node {
             Node::Expr(&hir::Expr {
-                kind: hir::ExprKind::Closure { body, fn_decl_span, .. },
+                kind: hir::ExprKind::Closure(&hir::Closure { body, fn_decl_span, .. }),
                 ..
             }) => (
                 sm.guess_head_span(fn_decl_span),
diff --git a/compiler/rustc_trait_selection/src/traits/error_reporting/on_unimplemented.rs b/compiler/rustc_trait_selection/src/traits/error_reporting/on_unimplemented.rs
index 7c9ee64a0c2..7e8872d9018 100644
--- a/compiler/rustc_trait_selection/src/traits/error_reporting/on_unimplemented.rs
+++ b/compiler/rustc_trait_selection/src/traits/error_reporting/on_unimplemented.rs
@@ -103,7 +103,7 @@ impl<'a, 'tcx> InferCtxtExt<'tcx> for InferCtxt<'a, 'tcx> {
                 })
             }),
             hir::Node::Expr(hir::Expr {
-                kind: hir::ExprKind::Closure { body, movability, .. },
+                kind: hir::ExprKind::Closure(hir::Closure { body, movability, .. }),
                 ..
             }) => self.describe_generator(*body).or_else(|| {
                 Some(if movability.is_some() { "an async closure" } else { "a closure" })
diff --git a/compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs b/compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs
index 31d54b5b403..57d0d43779a 100644
--- a/compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs
+++ b/compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs
@@ -785,7 +785,7 @@ impl<'a, 'tcx> InferCtxtExt<'tcx> for InferCtxt<'a, 'tcx> {
         // Get the name of the callable and the arguments to be used in the suggestion.
         let (snippet, sugg) = match hir.get_if_local(def_id) {
             Some(hir::Node::Expr(hir::Expr {
-                kind: hir::ExprKind::Closure { fn_decl, fn_decl_span, .. },
+                kind: hir::ExprKind::Closure(hir::Closure { fn_decl, fn_decl_span, .. }),
                 ..
             })) => {
                 err.span_label(*fn_decl_span, "consider calling this closure");