Rollup merge of #109354 - Swatinem:rm-closureid, r=compiler-errors

Remove the `NodeId` of `ast::ExprKind::Async`

This is a followup to rust-lang/rust#104833 (review).

In my original attempt, I was using `LoweringContext::expr`, which was not correct as it creates a fresh `DefId`.
It now uses the correct `DefId` for the wrapping `Expr`, and also makes forwarding `#[track_caller]` attributes more explicit.

clippy_lints/src/redundant_async_block.rs

@@ -42,7 +42,7 @@ impl EarlyLintPass for RedundantAsyncBlock {
         if expr.span.from_expansion() {
             return;
         }
-        if let ExprKind::Async(_, _, block) = &expr.kind && block.stmts.len() == 1 &&
+        if let ExprKind::Async(_, block) = &expr.kind && block.stmts.len() == 1 &&
             let Some(Stmt { kind: StmtKind::Expr(last), .. }) = block.stmts.last() &&
             let ExprKind::Await(future) = &last.kind &&
             !future.span.from_expansion() &&

clippy_lints/src/suspicious_operation_groupings.rs

@@ -578,7 +578,7 @@ fn ident_difference_expr_with_base_location(
         | (Assign(_, _, _), Assign(_, _, _))
         | (TryBlock(_), TryBlock(_))
         | (Await(_), Await(_))
-        | (Async(_, _, _), Async(_, _, _))
+        | (Async(_, _), Async(_, _))
         | (Block(_, _), Block(_, _))
         | (Closure(_), Closure(_))
         | (Match(_, _), Match(_, _))

clippy_utils/src/ast_utils.rs

@@ -209,7 +209,7 @@ pub fn eq_expr(l: &Expr, r: &Expr) -> bool {
                 && eq_fn_decl(lf, rf)
                 && eq_expr(le, re)
         },
-        (Async(lc, _, lb), Async(rc, _, rb)) => lc == rc && eq_block(lb, rb),
+        (Async(lc, lb), Async(rc, rb)) => lc == rc && eq_block(lb, rb),
         (Range(lf, lt, ll), Range(rf, rt, rl)) => ll == rl && eq_expr_opt(lf, rf) && eq_expr_opt(lt, rt),
         (AddrOf(lbk, lm, le), AddrOf(rbk, rm, re)) => lbk == rbk && lm == rm && eq_expr(le, re),
         (Path(lq, lp), Path(rq, rp)) => both(lq, rq, eq_qself) && eq_path(lp, rp),