Comments only: change TODOs to FIXMEs and annotate them

src/rustc/back/link.rs

@@ -58,8 +58,8 @@ mod write {
         let td = mk_target_data(
             sess.targ_cfg.target_strs.data_layout);
         llvm::LLVMAddTargetData(td.lltd, pm.llpm);
-        // TODO: run the linter here also, once there are llvm-c bindings for
-        // it.
+        // FIXME (#2812): run the linter here also, once there are llvm-c
+        // bindings for it.
 
         // Generate a pre-optimization intermediate file if -save-temps was
         // specified.

src/rustc/middle/astencode.rs

@@ -162,7 +162,7 @@ impl translation_routines for extended_decode_ctxt {
         {crate: ast::local_crate, node: self.tr_id(did.node)}
     }
     fn tr_span(_span: span) -> span {
-        ast_util::dummy_sp() // TODO...
+        ast_util::dummy_sp() // FIXME (#1972): handle span properly
     }
 }
 

src/rustc/middle/ty.rs

@@ -2758,9 +2758,6 @@ fn lookup_field_type(tcx: ctxt, class_id: def_id, id: def_id,
            some(tpt) { tpt.ty }
            none {
                let tpt = csearch::get_field_type(tcx, class_id, id);
-               // ok b/c fields are monomorphic
-               // TODO: Comment might be a lie, what if it mentions
-               // class-bound ty params?
                tcx.tcache.insert(id, tpt);
                tpt.ty
            }

src/rustc/middle/typeck/collect.rs

@@ -344,7 +344,8 @@ fn convert(ccx: @crate_ctxt, it: @ast::item) {
               inputs: t_args,
               output: t_res,
               ret_style: ast::return_val,
-              constraints: ~[]}); // tjc TODO
+              constraints: ~[]}); // FIXME (#2813): allow ctors to have
+         // constraints, or remove constraints from the language
         write_ty_to_tcx(tcx, ctor.node.id, t_ctor);
         tcx.tcache.insert(local_def(ctor.node.id),
                           {bounds: tpt.bounds,

src/rustc/middle/typeck/infer.rs

@@ -554,8 +554,8 @@ impl transaction_methods for infer_ctxt {
 
         let r <- self.try(f);
 
-        // TODO---could use a vec::clear() that ran destructors but kept
-        // the vec at its currently allocated length
+        // FIXME (#2814)---could use a vec::clear() that ran destructors but
+        // kept the vec at its currently allocated length
         self.tvb.bindings = ~[];
         self.rb.bindings = ~[];