Update tests to use #[rustc_auto_trait]

Author: fmease

compiler/rustc_codegen_cranelift/example/mini_core.rs

@@ -93,7 +93,8 @@ unsafe impl<'a, T: ?Sized> Sync for &'a T {}
 unsafe impl Sync for [u8; 16] {}
 
 #[lang = "freeze"]
-unsafe auto trait Freeze {}
+#[rustc_auto_trait]
+unsafe trait Freeze {}
 
 unsafe impl<T: ?Sized> Freeze for PhantomData<T> {}
 unsafe impl<T: ?Sized> Freeze for *const T {}
@@ -503,7 +504,8 @@ pub unsafe fn drop_in_place<T: ?Sized>(to_drop: *mut T) {
 }
 
 #[lang = "unpin"]
-pub auto trait Unpin {}
+#[rustc_auto_trait]
+pub trait Unpin {}
 
 #[lang = "deref"]
 pub trait Deref {

compiler/rustc_codegen_gcc/example/mini_core.rs

@@ -89,7 +89,8 @@ unsafe impl<'a, T: ?Sized> Sync for &'a T {}
 unsafe impl Sync for [u8; 16] {}
 
 #[lang = "freeze"]
-unsafe auto trait Freeze {}
+#[rustc_auto_trait]
+unsafe trait Freeze {}
 
 unsafe impl<T: ?Sized> Freeze for PhantomData<T> {}
 unsafe impl<T: ?Sized> Freeze for *const T {}
@@ -452,7 +453,8 @@ pub unsafe fn drop_in_place<T: ?Sized>(to_drop: *mut T) {
 }
 
 #[lang = "unpin"]
-pub auto trait Unpin {}
+#[rustc_auto_trait]
+pub trait Unpin {}
 
 #[lang = "deref"]
 pub trait Deref {

compiler/rustc_codegen_gcc/tests/run/abort1.rs

@@ -27,7 +27,8 @@ trait Receiver {
 }
 
 #[lang = "freeze"]
-pub(crate) unsafe auto trait Freeze {}
+#[rustc_auto_trait]
+pub(crate) unsafe trait Freeze {}
 
 mod intrinsics {
     use super::Sized;

compiler/rustc_codegen_gcc/tests/run/abort2.rs

@@ -27,7 +27,8 @@ trait Receiver {
 }
 
 #[lang = "freeze"]
-pub(crate) unsafe auto trait Freeze {}
+#[rustc_auto_trait]
+pub(crate) unsafe trait Freeze {}
 
 mod intrinsics {
     use super::Sized;

compiler/rustc_codegen_gcc/tests/run/array.rs

@@ -36,7 +36,8 @@ trait Receiver {
 }
 
 #[lang = "freeze"]
-pub(crate) unsafe auto trait Freeze {}
+#[rustc_auto_trait]
+pub(crate) unsafe trait Freeze {}
 
 mod libc {
     #[link(name = "c")]

compiler/rustc_codegen_gcc/tests/run/assign.rs

@@ -35,7 +35,8 @@ trait Receiver {
 }
 
 #[lang = "freeze"]
-pub(crate) unsafe auto trait Freeze {}
+#[rustc_auto_trait]
+pub(crate) unsafe trait Freeze {}
 
 #[lang = "panic_location"]
 struct PanicLocation {

compiler/rustc_codegen_gcc/tests/run/closure.rs

@@ -38,7 +38,8 @@ trait Receiver {
 }
 
 #[lang = "freeze"]
-pub(crate) unsafe auto trait Freeze {}
+#[rustc_auto_trait]
+pub(crate) unsafe trait Freeze {}
 
 mod libc {
     #[link(name = "c")]

compiler/rustc_codegen_gcc/tests/run/condition.rs

@@ -39,7 +39,8 @@ trait Receiver {
 }
 
 #[lang = "freeze"]
-pub(crate) unsafe auto trait Freeze {}
+#[rustc_auto_trait]
+pub(crate) unsafe trait Freeze {}
 
 mod libc {
     #[link(name = "c")]

compiler/rustc_codegen_gcc/tests/run/empty_main.rs

@@ -27,7 +27,8 @@ trait Receiver {
 }
 
 #[lang = "freeze"]
-pub(crate) unsafe auto trait Freeze {}
+#[rustc_auto_trait]
+pub(crate) unsafe trait Freeze {}
 
 /*
  * Code

compiler/rustc_codegen_gcc/tests/run/exit.rs

@@ -34,7 +34,8 @@ trait Receiver {
 }
 
 #[lang = "freeze"]
-pub(crate) unsafe auto trait Freeze {}
+#[rustc_auto_trait]
+pub(crate) unsafe trait Freeze {}
 
 /*
  * Code