Update tests for rustc_doc_primitive

tests/rustdoc-json/primitives/local_primitive.rs

@@ -8,7 +8,7 @@
 
 //! Link to [i32][prim@i32] [i64][prim@i64]
 
-#[doc(primitive = "i32")]
+#[rustc_doc_primitive = "i32"]
 mod prim_i32 {}
 
 // @set local_i32 = "$.index[*][?(@.name=='i32')].id"

tests/rustdoc-json/primitives/primitive_impls.rs

@@ -25,7 +25,7 @@ pub trait Trait {}
 impl Trait for i32 {}
 
 /// i32
-#[doc(primitive = "i32")]
+#[rustc_doc_primitive = "i32"]
 mod prim_i32 {}
 
 // @set i32 = "$.index[*][?(@.docs=='i32')].id"

tests/rustdoc-json/primitives/primitive_overloading.rs

@@ -2,7 +2,7 @@
 
 // Regression test for <https://github.com/rust-lang/rust/issues/98006>.
 
-#![feature(rustdoc_internals)]
+#![feature(rustc_attrs)]
 #![feature(no_core)]
 
 #![no_core]
@@ -10,7 +10,7 @@
 // @has "$.index[*][?(@.name=='usize')]"
 // @has "$.index[*][?(@.name=='prim')]"
 
-#[doc(primitive = "usize")]
+#[rustc_doc_primitive = "usize"]
 /// This is the built-in type `usize`.
 mod prim {
 }

tests/rustdoc-json/primitives/use_primitive.rs

@@ -1,8 +1,8 @@
 // edition:2018
 
-#![feature(rustdoc_internals)]
+#![feature(rustc_attrs)]
 
-#[doc(primitive = "usize")]
+#[rustc_doc_primitive = "usize"]
 mod usize {}
 
 // @set local_crate_id = "$.index[*][?(@.name=='use_primitive')].crate_id"