Update error annotations in tests that successfully compile

Those annotation are silently ignored rather than begin validated
against compiler output. Update them before validation is enabled,
to avoid test failures.

src/test/ui/conditional-compilation/cfg-attr-multi-true.rs

@@ -17,5 +17,5 @@ impl MustUseDeprecated { //~ warning: use of deprecated item
 
 fn main() {
     MustUseDeprecated::new(); //~ warning: use of deprecated item
-    //| warning: unused `MustUseDeprecated` that must be used
+    //~| warning: unused `MustUseDeprecated` that must be used
 }

src/test/ui/const-generics/cannot-infer-type-for-const-param.rs

@@ -8,6 +8,5 @@
 struct Foo<const NUM_BYTES: usize>(pub [u8; NUM_BYTES]);
 
 fn main() {
-    let _ = Foo::<3>([1, 2, 3]); //~ ERROR type annotations needed
-    //~^ ERROR mismatched types
+    let _ = Foo::<3>([1, 2, 3]);
 }

src/test/ui/const-generics/issues/issue-62187-encountered-polymorphic-const.rs

@@ -12,5 +12,5 @@ impl<const L: usize> BitLen for [u8; L] {
 }
 
 fn main() {
-    let foo = <[u8; 2]>::BIT_LEN;
+    let foo = <[u8; 2]>::BIT_LEN; //~ WARN unused variable
 }

src/test/ui/derive-uninhabited-enum-38885.rs

@@ -10,7 +10,7 @@ enum Void {}
 #[derive(Debug)]
 enum Foo {
     Bar(u8),
-    Void(Void), //~ WARN never used
+    Void(Void), //~ WARN never constructed
 }
 
 fn main() {

src/test/ui/feature-gate/issue-43106-gating-of-builtin-attrs.rs

@@ -38,6 +38,7 @@
 // Exception, a gated and deprecated attribute.
 
 #![plugin_registrar] //~ WARN unused attribute
+//~| WARN use of deprecated attribute
 
 // UNGATED WHITE-LISTED BUILT-IN ATTRIBUTES
 
@@ -90,7 +91,7 @@
 #![crate_id = "10"] //~ WARN use of deprecated attribute
 
 // FIXME(#44232) we should warn that this isn't used.
-#![feature(rust1)]
+#![feature(rust1)] //~ WARN no longer requires an attribute to enable
 
 #![no_start] //~ WARN use of deprecated attribute
 
@@ -215,20 +216,25 @@ mod macro_export {
 
 #[plugin_registrar]
 //~^ WARN unused attribute
+//~| WARN use of deprecated attribute
 mod plugin_registrar {
     mod inner { #![plugin_registrar] }
     //~^ WARN unused attribute
+    //~| WARN use of deprecated attribute
 
     // for `fn f()` case, see gated-plugin_registrar.rs
 
     #[plugin_registrar] struct S;
     //~^ WARN unused attribute
+    //~| WARN use of deprecated attribute
 
     #[plugin_registrar] type T = S;
     //~^ WARN unused attribute
+    //~| WARN use of deprecated attribute
 
     #[plugin_registrar] impl S { }
     //~^ WARN unused attribute
+    //~| WARN use of deprecated attribute
 }
 
 #[main]

src/test/ui/issues/issue-54943-3.rs

@@ -15,7 +15,6 @@ fn bar<'a>() {
     return;
 
     let _x = foo::<Vec<_>>(Vec::<&'a u32>::new());
-    //~^ ERROR the type `&'a u32` does not fulfill the required lifetime [E0477]
 }
 
 fn main() {}

src/test/ui/lint/reasons.rs

@@ -28,6 +28,8 @@ impl fmt::Debug for CheaterDetectionMechanism {
 
 fn main() {
     let Social_exchange_psychology = CheaterDetectionMechanism {};
-    //~^ WARN should have a snake case name such as
+    //~^ WARN should have a snake case name
+    //~| NOTE #[warn(non_snake_case)]` implied by `#[warn(nonstandard_style)]
     //~| NOTE people shouldn't have to change their usual style habits
+    //~| HELP convert the identifier to snake case
 }

src/test/ui/lint/type-overflow.rs

@@ -2,7 +2,7 @@
 #![warn(overflowing_literals)]
 
 fn main() {
-    let error = 255i8; //~WARNING literal out of range for i8
+    let error = 255i8; //~WARNING literal out of range for `i8`
 
     let ok = 0b1000_0001; // should be ok -> i32
     let ok = 0b0111_1111i8; // should be ok -> 127i8

src/test/ui/lint/use-redundant.rs

@@ -1,7 +1,7 @@
 // build-pass (FIXME(62277): could be check-pass?)
 #![warn(unused_imports)]
 
-use crate::foo::Bar; //~ WARNING first import
+use crate::foo::Bar;
 
 mod foo {
     pub type Bar = i32;
@@ -14,14 +14,14 @@ fn baz() -> Bar {
 mod m1 { pub struct S {} }
 mod m2 { pub struct S {} }
 
-use m1::*;
-use m2::*;
+use m1::*; //~ WARNING unused import
+use m2::*; //~ WARNING unused import
 
 fn main() {
-    use crate::foo::Bar; //~ WARNING redundant import
+    use crate::foo::Bar; //~ WARNING imported redundantly
     let _a: Bar = 3;
     baz();
 
-    use m1::S; //~ WARNING redundant import
+    use m1::S;
     let _s = S {};
 }

src/test/ui/malformed/malformed-regressions.rs

@@ -1,8 +1,18 @@
 // build-pass (FIXME(62277): could be check-pass?)
 
-#[doc] //~ WARN attribute must be of the form
-#[ignore()] //~ WARN attribute must be of the form
-#[inline = ""] //~ WARN attribute must be of the form
-#[link] //~ WARN attribute must be of the form
-#[link = ""] //~ WARN attribute must be of the form
+#[doc]
+//~^ WARN attribute must be of the form
+//~| WARN this was previously accepted
+#[ignore()]
+//~^ WARN attribute must be of the form
+//~| WARN this was previously accepted
+#[inline = ""]
+//~^ WARN attribute must be of the form
+//~| WARN this was previously accepted
+#[link]
+//~^WARN attribute must be of the form
+//~| WARN this was previously accepted
+#[link = ""]
+//~^ WARN attribute must be of the form
+//~| WARN this was previously accepted
 fn main() {}

src/test/ui/malformed/malformed-regressions.stderr

@@ -9,7 +9,7 @@ LL | #[doc]
    = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571>
 
 warning: attribute must be of the form `#[ignore]` or `#[ignore = "reason"]`
-  --> $DIR/malformed-regressions.rs:4:1
+  --> $DIR/malformed-regressions.rs:6:1
    |
 LL | #[ignore()]
    | ^^^^^^^^^^^
@@ -18,7 +18,7 @@ LL | #[ignore()]
    = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571>
 
 warning: attribute must be of the form `#[inline]` or `#[inline(always|never)]`
-  --> $DIR/malformed-regressions.rs:5:1
+  --> $DIR/malformed-regressions.rs:9:1
    |
 LL | #[inline = ""]
    | ^^^^^^^^^^^^^^
@@ -27,7 +27,7 @@ LL | #[inline = ""]
    = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571>
 
 warning: attribute must be of the form `#[link(name = "...", /*opt*/ kind = "dylib|static|...", /*opt*/ cfg = "...")]`
-  --> $DIR/malformed-regressions.rs:6:1
+  --> $DIR/malformed-regressions.rs:12:1
    |
 LL | #[link]
    | ^^^^^^^
@@ -36,7 +36,7 @@ LL | #[link]
    = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571>
 
 warning: attribute must be of the form `#[link(name = "...", /*opt*/ kind = "dylib|static|...", /*opt*/ cfg = "...")]`
-  --> $DIR/malformed-regressions.rs:7:1
+  --> $DIR/malformed-regressions.rs:15:1
    |
 LL | #[link = ""]
    | ^^^^^^^^^^^^

src/test/ui/pattern/usefulness/issue-43253.rs

@@ -32,14 +32,14 @@ fn main() {
 
     match 10 {
         1..10 => {},
-        8..=9 => {}, //~ WARNING multiple patterns covering the same range
+        8..=9 => {}, //~ WARNING unreachable pattern
         _ => {},
     }
 
     match 10 {
         5..7 => {},
         6 => {}, //~ WARNING unreachable pattern
-        1..10 => {}, //~ WARNING multiple patterns covering the same range
+        1..10 => {},
         9..=9 => {}, //~ WARNING unreachable pattern
         6 => {}, //~ WARNING unreachable pattern
         _ => {},

src/test/ui/regions/regions-outlives-nominal-type-struct-region.rs

@@ -13,7 +13,7 @@ mod variant_struct_region {
         x: &'a i32,
     }
     struct Bar<'a,'b> {
-        f: &'a Foo<'b> //~ ERROR reference has a longer lifetime
+        f: &'a Foo<'b>
     }
 }
 

src/test/ui/regions/regions-outlives-nominal-type-struct-type-rev.rs

@@ -13,7 +13,7 @@ mod rev_variant_struct_type {
         x: fn(T)
     }
     struct Bar<'a,'b> {
-        f: &'a Foo<&'b i32> //~ ERROR reference has a longer lifetime
+        f: &'a Foo<&'b i32>
     }
 }
 

src/test/ui/regions/regions-outlives-nominal-type-struct-type.rs

@@ -13,7 +13,7 @@ mod variant_struct_type {
         x: T
     }
     struct Bar<'a,'b> {
-        f: &'a Foo<&'b i32> //~ ERROR reference has a longer lifetime
+        f: &'a Foo<&'b i32>
     }
 }