Auto merge of rust-lang#7281 - camsteffen:has-doc-fp, r=flip1995

Fix missing_docs_in_private_items false negative

changelog: Fix [`missing_docs_in_private_items`] false negative when the item has any `#[name = "value"]` attribute

Closes rust-lang#7247 (decided not to use the rustc method since it calls `Session::check_name`, which is for rustc only)

clippy_lints/src/missing_doc.rs

@@ -93,9 +93,9 @@ impl MissingDoc {
             return;
         }
 
-        let has_doc = attrs.iter().any(|a| {
-            a.is_doc_comment() || a.doc_str().is_some() || a.value_str().is_some() || Self::has_include(a.meta())
-        });
+        let has_doc = attrs
+            .iter()
+            .any(|a| a.doc_str().is_some() || Self::has_include(a.meta()));
         if !has_doc {
             span_lint(
                 cx,

tests/ui/missing-doc-impl.rs

@@ -67,7 +67,10 @@ impl PubFoo {
     pub fn foo() {}
     /// dox
     pub fn foo1() {}
-    fn foo2() {}
+    #[must_use = "yep"]
+    fn foo2() -> u32 {
+        1
+    }
     #[allow(clippy::missing_docs_in_private_items)]
     pub fn foo3() {}
 }

tests/ui/missing-doc-impl.stderr

@@ -94,10 +94,12 @@ LL |     pub fn foo() {}
    |     ^^^^^^^^^^^^^^^
 
 error: missing documentation for an associated function
-  --> $DIR/missing-doc-impl.rs:70:5
+  --> $DIR/missing-doc-impl.rs:71:5
    |
-LL |     fn foo2() {}
-   |     ^^^^^^^^^^^^
+LL | /     fn foo2() -> u32 {
+LL | |         1
+LL | |     }
+   | |_____^
 
 error: aborting due to 15 previous errors