expansion: Remove restriction on use of macro attributes with test/bench

The restrictions were introduced in https://github.com/rust-lang/rust/pull/54277 and no longer necessary now because legacy plugins are now expanded in usual left-to-right order

src/test/run-pass-fulldeps/macro-crate.rs

@@ -19,8 +19,8 @@
 #[macro_use] #[no_link]
 extern crate macro_crate_test;
 
-#[derive(PartialEq, Clone, Debug)]
 #[rustc_into_multi_foo]
+#[derive(PartialEq, Clone, Debug)]
 fn foo() -> AnotherFakeTypeThatHadBetterGoAway {}
 
 // Check that the `#[into_multi_foo]`-generated `foo2` is configured away

src/test/ui-fulldeps/attribute-order-restricted.rs

@@ -1,9 +1,5 @@
 // aux-build:attr_proc_macro.rs
-// compile-flags:--test
 
-#![feature(test)]
-
-extern crate test;
 extern crate attr_proc_macro;
 use attr_proc_macro::*;
 
@@ -15,18 +11,4 @@ struct Before;
 #[attr_proc_macro] //~ ERROR macro attributes must be placed before `#[derive]`
 struct After;
 
-#[attr_proc_macro] //~ ERROR macro attributes cannot be used together with `#[test]` or `#[bench]`
-#[test]
-fn test_before() {}
-
-#[test]
-#[attr_proc_macro] //~ ERROR macro attributes cannot be used together with `#[test]` or `#[bench]`
-fn test_after() {}
-
-#[attr_proc_macro] //~ ERROR macro attributes cannot be used together with `#[test]` or `#[bench]`
-#[bench]
-fn bench_before(b: &mut test::Bencher) {}
-
-#[bench]
-#[attr_proc_macro] //~ ERROR macro attributes cannot be used together with `#[test]` or `#[bench]`
-fn bench_after(b: &mut test::Bencher) {}
+fn main() {}

src/test/ui-fulldeps/attribute-order-restricted.stderr

@@ -1,32 +1,8 @@
 error: macro attributes must be placed before `#[derive]`
-  --> $DIR/attribute-order-restricted.rs:15:1
+  --> $DIR/attribute-order-restricted.rs:11:1
    |
 LL | #[attr_proc_macro] //~ ERROR macro attributes must be placed before `#[derive]`
    | ^^^^^^^^^^^^^^^^^^
 
-error: macro attributes cannot be used together with `#[test]` or `#[bench]`
-  --> $DIR/attribute-order-restricted.rs:18:1
-   |
-LL | #[attr_proc_macro] //~ ERROR macro attributes cannot be used together with `#[test]` or `#[bench]`
-   | ^^^^^^^^^^^^^^^^^^
-
-error: macro attributes cannot be used together with `#[test]` or `#[bench]`
-  --> $DIR/attribute-order-restricted.rs:23:1
-   |
-LL | #[attr_proc_macro] //~ ERROR macro attributes cannot be used together with `#[test]` or `#[bench]`
-   | ^^^^^^^^^^^^^^^^^^
-
-error: macro attributes cannot be used together with `#[test]` or `#[bench]`
-  --> $DIR/attribute-order-restricted.rs:26:1
-   |
-LL | #[attr_proc_macro] //~ ERROR macro attributes cannot be used together with `#[test]` or `#[bench]`
-   | ^^^^^^^^^^^^^^^^^^
-
-error: macro attributes cannot be used together with `#[test]` or `#[bench]`
-  --> $DIR/attribute-order-restricted.rs:31:1
-   |
-LL | #[attr_proc_macro] //~ ERROR macro attributes cannot be used together with `#[test]` or `#[bench]`
-   | ^^^^^^^^^^^^^^^^^^
-
-error: aborting due to 5 previous errors
+error: aborting due to previous error