xfail box-related debug-info tests r=snapshot

Author: James Miller

src/test/debug-info/box.rs

@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-// xfail-win32 Broken because of LLVM bug: http://llvm.org/bugs/show_bug.cgi?id=16249
+// xfail
 
 // compile-flags:-Z extra-debug-info
 // debugger:set print pretty off
@@ -32,4 +32,4 @@ fn main() {
     _zzz();
 }
 
-fn _zzz() {()}
+fn _zzz() {()}

src/test/debug-info/vec.rs

@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-// xfail-win32 Broken because of LLVM bug: http://llvm.org/bugs/show_bug.cgi?id=16249
+// xfail
 
 // compile-flags:-Z extra-debug-info
 // debugger:set print pretty off
@@ -32,4 +32,4 @@ fn main() {
     _zzz();
 }
 
-fn _zzz() {()}
+fn _zzz() {()}