message: Improve global name for anonymous allocations
diff: @@ -165,7 +165,7 @@ fn trans_const_place<'a, 'tcx: 'a>(
  fn data_id_for_alloc_id<B: Backend>(module: &mut Module<B>, alloc_id: AllocId) -> DataId {
  module
  - .declare_data(&alloc_id.0.to_string(), Linkage::Local, false)
  + .declare_data(&format!("__alloc_{}", alloc_id.0), Linkage::Local, false)
  .unwrap()
  }
  