remove some unused types from the tests

Author: RalfJung

src/test/ui/issues/issue-27060-rpass.rs

@@ -7,19 +7,10 @@ pub struct Good {
     aligned: [u8; 32],
 }
 
-#[repr(packed)]
-pub struct JustArray {
-    array: [u32]
-}
-
 // kill this test when that turns to a hard error
 #[allow(safe_packed_borrows)]
 fn main() {
-    let good = Good {
-        data: &0,
-        data2: [&0, &0],
-        aligned: [0; 32]
-    };
+    let good = Good { data: &0, data2: [&0, &0], aligned: [0; 32] };
 
     unsafe {
         let _ = &good.data; // ok

src/test/ui/issues/issue-27060.rs

@@ -5,11 +5,6 @@ pub struct Good {
     aligned: [u8; 32],
 }
 
-#[repr(packed)]
-pub struct JustArray {
-    array: [u32]
-}
-
 #[deny(safe_packed_borrows)]
 fn main() {
     let good = Good {

src/test/ui/issues/issue-27060.stderr

@@ -1,11 +1,11 @@
 error: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
-  --> $DIR/issue-27060.rs:26:13
+  --> $DIR/issue-27060.rs:21:13
    |
 LL |     let _ = &good.data;
    |             ^^^^^^^^^^
    |
 note: the lint level is defined here
-  --> $DIR/issue-27060.rs:13:8
+  --> $DIR/issue-27060.rs:8:8
    |
 LL | #[deny(safe_packed_borrows)]
    |        ^^^^^^^^^^^^^^^^^^^
@@ -14,7 +14,7 @@ LL | #[deny(safe_packed_borrows)]
    = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
 
 error: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
-  --> $DIR/issue-27060.rs:28:13
+  --> $DIR/issue-27060.rs:23:13
    |
 LL |     let _ = &good.data2[0];
    |             ^^^^^^^^^^^^^^

src/test/ui/lint/packed_reference.rs

@@ -7,11 +7,6 @@ pub struct Good {
     aligned: [u8; 32],
 }
 
-#[repr(packed)]
-pub struct JustArray {
-    array: [u32],
-}
-
 fn main() {
     unsafe {
         let good = Good { data: &0, data2: [&0, &0], aligned: [0; 32] };

src/test/ui/lint/packed_reference.stderr

@@ -1,5 +1,5 @@
 error: reference to packed field is not allowed
-  --> $DIR/packed_reference.rs:19:17
+  --> $DIR/packed_reference.rs:14:17
    |
 LL |         let _ = &good.data;
    |                 ^^^^^^^^^^
@@ -12,7 +12,7 @@ LL | #![deny(packed_references)]
    = note: fields of packed structs might be misaligned, and creating a misaligned reference is undefined behavior (even if that reference is never dereferenced)
 
 error: reference to packed field is not allowed
-  --> $DIR/packed_reference.rs:20:17
+  --> $DIR/packed_reference.rs:15:17
    |
 LL |         let _ = &good.data2[0];
    |                 ^^^^^^^^^^^^^^