Readd unsafe keyword in tests

Author: fee1-dead

src/test/rustdoc/const-display.rs

@@ -31,20 +31,20 @@ pub const fn foo2() -> u32 { 42 }
 pub const fn bar2() -> u32 { 42 }
 
 
-// @has 'foo/fn.foo2_gated.html' '//pre' 'pub const fn foo2_gated() -> u32'
+// @has 'foo/fn.foo2_gated.html' '//pre' 'pub const unsafe fn foo2_gated() -> u32'
 // @!has - '//span[@class="since"]'
 #[unstable(feature = "foo2", issue = "none")]
-pub const fn foo2_gated() -> u32 { 42 }
+pub const unsafe fn foo2_gated() -> u32 { 42 }
 
-// @has 'foo/fn.bar2_gated.html' '//pre' 'pub const fn bar2_gated() -> u32'
+// @has 'foo/fn.bar2_gated.html' '//pre' 'pub const unsafe fn bar2_gated() -> u32'
 // @has - '//span[@class="since"]' '1.0.0 (const: 1.0.0)'
 #[stable(feature = "rust1", since = "1.0.0")]
 #[rustc_const_stable(feature = "rust1", since = "1.0.0")]
-pub const fn bar2_gated() -> u32 { 42 }
+pub const unsafe fn bar2_gated() -> u32 { 42 }
 
-// @has 'foo/fn.bar_not_gated.html' '//pre' 'pub const fn bar_not_gated() -> u32'
+// @has 'foo/fn.bar_not_gated.html' '//pre' 'pub const unsafe fn bar_not_gated() -> u32'
 // @!has - '//span[@class="since"]'
-pub const fn bar_not_gated() -> u32 { 42 }
+pub const unsafe fn bar_not_gated() -> u32 { 42 }
 
 pub struct Foo;