Comments only: change TODOs to FIXMEs and annotate them

src/libsyntax/attr.rs

@@ -368,7 +368,7 @@ enum inline_attr {
 
 /// True if something like #[inline] is found in the list of attrs.
 fn find_inline_attr(attrs: ~[ast::attribute]) -> inline_attr {
-    // TODO---validate the usage of #[inline] and #[inline(always)]
+    // FIXME (#2809)---validate the usage of #[inline] and #[inline(always)]
     do vec::foldl(ia_none, attrs) |ia,attr| {
         alt attr.node.value.node {
           ast::meta_word(@"inline") { ia_hint }