respect doc(hidden) when suggesting available fields

Author: ibraheemdev

compiler/rustc_typeck/src/check/expr.rs

@@ -1794,6 +1794,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                     .1;
                 field.vis.is_accessible_from(def_scope, self.tcx)
             })
+            .filter(|field| !self.tcx.is_doc_hidden(field.did))
             .map(|field| field.name)
             .collect()
     }

src/test/ui/did_you_mean/issue-93210-ignore-doc-hidden.rs

@@ -0,0 +1,24 @@
+#[derive(Default)]
+pub struct A {
+    #[doc(hidden)]
+    pub hello: i32,
+    pub bye: i32,
+}
+
+#[derive(Default)]
+pub struct B {
+    pub hello: i32,
+    pub bye: i32,
+}
+
+fn main() {
+    A::default().hey;
+    //~^ ERROR no field `hey` on type `A`
+    //~| NOTE unknown field
+    //~| NOTE available fields are: `bye`
+
+    B::default().hey;
+    //~^ ERROR no field `hey` on type `B`
+    //~| NOTE unknown field
+    //~| NOTE available fields are: `hello`, `bye`
+}

src/test/ui/did_you_mean/issue-93210-ignore-doc-hidden.stderr

@@ -0,0 +1,19 @@
+error[E0609]: no field `hey` on type `A`
+  --> $DIR/issue-93210-ignore-doc-hidden.rs:15:18
+   |
+LL |     A::default().hey;
+   |                  ^^^ unknown field
+   |
+   = note: available fields are: `bye`
+
+error[E0609]: no field `hey` on type `B`
+  --> $DIR/issue-93210-ignore-doc-hidden.rs:20:18
+   |
+LL |     B::default().hey;
+   |                  ^^^ unknown field
+   |
+   = note: available fields are: `hello`, `bye`
+
+error: aborting due to 2 previous errors
+
+For more information about this error, try `rustc --explain E0609`.