Auto merge of #108640 - matthiaskrgr:rollup-rii4t5t, r=matthiaskrgr

Rollup of 5 pull requests

Successful merges:

 - #108516 (Restrict `#[rustc_box]` to `Box::new` calls)
 - #108575 (Erase **all** regions when probing for associated types on ambiguity in astconv)
 - #108585 (Run compiler test suite in parallel on Fuchsia)
 - #108606 (Add test case for mismatched open/close delims)
 - #108609 (Highlight whole expression for E0599)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup

Author: bors

clippy_utils/src/higher.rs

@@ -287,15 +287,12 @@ impl<'a> VecArgs<'a> {
                     Some(VecArgs::Repeat(&args[0], &args[1]))
                 } else if match_def_path(cx, fun_def_id, &paths::SLICE_INTO_VEC) && args.len() == 1 {
                     // `vec![a, b, c]` case
-                    if_chain! {
-                        if let hir::ExprKind::Box(boxed) = args[0].kind;
-                        if let hir::ExprKind::Array(args) = boxed.kind;
-                        then {
-                            return Some(VecArgs::Vec(args));
-                        }
+                    if let hir::ExprKind::Call(_, [arg]) = &args[0].kind
+                        && let hir::ExprKind::Array(args) = arg.kind {
+                        Some(VecArgs::Vec(args))
+                    } else {
+                        None
                     }
-
-                    None
                 } else if match_def_path(cx, fun_def_id, &paths::VEC_NEW) && args.is_empty() {
                     Some(VecArgs::Vec(&[]))
                 } else {