---

yaml
---
r: 228693
b: refs/heads/try
c: 71d4418
h: refs/heads/master
i:
  228691: e153e17
v: v3

Author: nikomatsakis

[refs]

@@ -1,7 +1,7 @@
 ---
 refs/heads/master: aca2057ed5fb7af3f8905b2bc01f72fa001c35c8
 refs/heads/snap-stage3: 1af31d4974e33027a68126fa5a5a3c2c6491824f
-refs/heads/try: d075faa2ed2a9290a4ac114ff6e0b87c03e86b98
+refs/heads/try: 71d44189e04d714a64c304f00a7ebfd48150b93a
 refs/tags/release-0.1: 1f5c5126e96c79d22cb7862f75304136e204f105
 refs/tags/release-0.2: c870d2dffb391e14efb05aa27898f1f6333a9596
 refs/tags/release-0.3: b5f0d0f648d9a6153664837026ba1be43d3e2503

branches/try/src/librustc_trans/trans/closure.rs

@@ -148,9 +148,7 @@ pub fn get_or_create_closure_declaration<'a, 'tcx>(ccx: &CrateContext<'a, 'tcx>,
     });
 
     let function_type = ccx.tcx().mk_closure_from_closure_substs(closure_id, Box::new(substs));
-    let llfn = declare::define_internal_rust_fn(ccx, &symbol[..], function_type).unwrap_or_else(||{
-        ccx.sess().bug(&format!("symbol `{}` already defined", symbol));
-    });
+    let llfn = declare::define_internal_rust_fn(ccx, &symbol[..], function_type);
 
     // set an inline hint for all closures
     attributes::inline(llfn, attributes::InlineAttr::Hint);

branches/try/src/librustc_trans/trans/debuginfo/metadata.rs

@@ -811,14 +811,10 @@ pub fn type_metadata<'a, 'tcx>(cx: &CrateContext<'a, 'tcx>,
             MetadataCreationResult::new(pointer_type_metadata(cx, t, fn_metadata), false)
 
         }
-        ty::TyClosure(def_id, ref substs) => {
-            let infcx = infer::normalizing_infer_ctxt(cx.tcx(), &cx.tcx().tables);
-            let upvars = infcx.closure_upvars(def_id, substs).unwrap();
-            let upvar_types = upvars.iter().map(|u| u.ty).collect::<Vec<_>>();
-
+        ty::TyClosure(_, ref substs) => {
             prepare_tuple_metadata(cx,
                                    t,
-                                   &upvar_types[..],
+                                   &substs.upvar_tys,
                                    unique_type_id,
                                    usage_site_span).finalize(cx)
         }

branches/try/src/librustc_trans/trans/debuginfo/mod.rs

@@ -416,7 +416,7 @@ pub fn create_function_debug_context<'a, 'tcx>(cx: &CrateContext<'a, 'tcx>,
             ty::TyBareFn(_, ref barefnty) => {
                 (cx.tcx().erase_late_bound_regions(&barefnty.sig), barefnty.abi)
             }
-            ty::TyClosure(def_id, substs) => {
+            ty::TyClosure(def_id, ref substs) => {
                 let closure_type = cx.tcx().closure_type(def_id, substs);
                 (cx.tcx().erase_late_bound_regions(&closure_type.sig), closure_type.abi)
             }