librustc: Whitelist linkage attribute for unused attribute lint since it's processed during trans.

luqmana · luqmana · commit 33893aebcf19 · 2014-11-17T15:24:35.000-05:00
diff --git a/src/librustc/lint/builtin.rs b/src/librustc/lint/builtin.rs
@@ -619,6 +619,7 @@ impl LintPass for UnusedAttributes {
             "link",
             "link_name",
             "link_section",
+            "linkage",
             "no_builtins",
             "no_mangle",
             "no_split_stack",
