value-namespace items require a marker, so emit an error

Author: QuietMisdreavus

src/librustdoc/clean/mod.rs

@@ -926,8 +926,14 @@ impl Clean<Attributes> for [ast::Attribute] {
                             // for structs, etc, and the link won't work.
                             if let Ok(path) = resolve(false) {
                                 path.def
-                            } else if let Ok(path) = resolve(true) {
-                                path.def
+                            } else if let Ok(_path) = resolve(true) {
+                                let sp = attrs.doc_strings.first().map_or(DUMMY_SP, |a| a.span());
+                                cx.sess().struct_span_err(sp, &format!("could not resolve `{}`",
+                                                                       path_str))
+                                         .help(&format!("try `{0}()`, `static@{0}`, or `const@{0}`",
+                                                        path_str))
+                                         .emit();
+                                continue;
                             } else {
                                 // this could just be a normal link
                                 continue;

src/test/rustdoc/intra-links.rs

@@ -27,9 +27,9 @@
 //! * [`ThisTrait`](ThisTrait)
 //! * [`ThisAlias`](ThisAlias)
 //! * [`ThisUnion`](ThisUnion)
-//! * [`this_function`](this_function)
-//! * [`THIS_CONST`](THIS_CONST)
-//! * [`THIS_STATIC`](THIS_STATIC)
+//! * [`this_function`](this_function())
+//! * [`THIS_CONST`](const@THIS_CONST)
+//! * [`THIS_STATIC`](static@THIS_STATIC)
 //! * [`this_macro`](this_macro!)
 //!
 //! In addition, there's some specifics we want to look at. There's [a trait called