rustdoc: Add function signature field to the doc::fndoc

src/rustdoc/attr_pass.rs

@@ -134,7 +134,8 @@ fn fold_fn(
             brief: attrs.brief,
             desc: attrs.desc,
             args: merge_arg_attrs(doc.args, attrs.args),
-            return: merge_ret_attrs(doc.return, attrs.return)
+            return: merge_ret_attrs(doc.return, attrs.return),
+            ty: none
         };
     }
 

src/rustdoc/doc.rs

@@ -22,7 +22,8 @@ type fndoc = ~{
     brief: option<str>,
     desc: option<str>,
     args: [argdoc],
-    return: option<retdoc>
+    return: option<retdoc>,
+    ty: option<str>
 };
 
 type argdoc = ~{

src/rustdoc/extract.rs

@@ -80,7 +80,8 @@ fn fndoc_from_fn(
         brief: none,
         desc: none,
         args: argdocs_from_args(decl.inputs),
-        return: none
+        return: none,
+        ty: none
     }
 }