Auto merge of #56051 - pietroalbini:rollup, r=pietroalbini

Rollup of 25 pull requests

Successful merges:

 - #55562 (Add powerpc- and powerpc64-unknown-linux-musl targets)
 - #55564 (test/linkage-visibility: Ignore on musl targets)
 - #55827 (A few tweaks to iterations/collecting)
 - #55834 (Forward the ABI of the non-zero sized fields of an union if they have the same ABI)
 - #55857 (remove unused dependency)
 - #55862 (in which the E0618 "expected function" diagnostic gets a makeover)
 - #55867 (do not panic just because cargo failed)
 - #55894 (miri enum discriminant handling: Fix treatment of pointers, better error when it is undef)
 - #55916 (Make miri value visitor useful for mutation)
 - #55919 (core/tests/num: Simplify `test_int_from_str_overflow()` test code)
 - #55923 (reword #[test] attribute error on fn items)
 - #55949 (ty: return impl Iterator from Predicate::walk_tys)
 - #55952 (Update to Clang 7 on CI.)
 - #55953 (#53488 Refactoring UpvarId)
 - #55962 (rustdoc: properly calculate spans for intra-doc link resolution errors)
 - #55963 (Stress test for MPSC)
 - #55968 (Clean up some non-mod-rs stuff.)
 - #55970 (Miri backtrace improvements)
 - #56007 (CTFE: dynamically make sure we do not call non-const-fn)
 - #56011 (Replace data.clone() by Arc::clone(&data) in mutex doc.)
 - #56012 (avoid shared ref in UnsafeCell::get)
 - #56016 (Add VecDeque::resize_with)
 - #56027 (docs: Add missing backtick in object_safety.rs docs)
 - #56043 (remove "approx env bounds" if we already know from trait)
 - #56059 (Increase `Duration` approximate equal threshold to 1us)

1 files changed, 12 insertions, 4 deletions

diff --git a/src/test/ui/empty/empty-struct-unit-expr.stderr b/src/test/ui/empty/empty-struct-unit-expr.stderr
index fff696fc80f..360e0c6f107 100644
--- a/src/test/ui/empty/empty-struct-unit-expr.stderr
+++ b/src/test/ui/empty/empty-struct-unit-expr.stderr
@@ -5,7 +5,9 @@ LL | struct Empty2;
    | -------------- `Empty2` defined here
 ...
 LL |     let e2 = Empty2(); //~ ERROR expected function, found `Empty2`
-   |              ^^^^^^^^ not a function
+   |              ^^^^^^--
+   |              |
+   |              call expression requires function
 
 error[E0618]: expected function, found enum variant `E::Empty4`
   --> $DIR/empty-struct-unit-expr.rs:26:14
@@ -14,7 +16,9 @@ LL |     Empty4
    |     ------ `E::Empty4` defined here
 ...
 LL |     let e4 = E::Empty4();
-   |              ^^^^^^^^^^^ not a function
+   |              ^^^^^^^^^--
+   |              |
+   |              call expression requires function
 help: `E::Empty4` is a unit variant, you need to write it without the parenthesis
    |
 LL |     let e4 = E::Empty4;
@@ -24,13 +28,17 @@ error[E0618]: expected function, found `empty_struct::XEmpty2`
   --> $DIR/empty-struct-unit-expr.rs:28:15
    |
 LL |     let xe2 = XEmpty2(); //~ ERROR expected function, found `empty_struct::XEmpty2`
-   |               ^^^^^^^^^ not a function
+   |               ^^^^^^^--
+   |               |
+   |               call expression requires function
 
 error[E0618]: expected function, found enum variant `XE::XEmpty4`
   --> $DIR/empty-struct-unit-expr.rs:29:15
    |
 LL |     let xe4 = XE::XEmpty4();
-   |               ^^^^^^^^^^^^^ not a function
+   |               ^^^^^^^^^^^--
+   |               |
+   |               call expression requires function
 help: `XE::XEmpty4` is a unit variant, you need to write it without the parenthesis
    |
 LL |     let xe4 = XE::XEmpty4;