message: Shorten __alloc symbol names a bit
diff: @@ -274,7 +274,7 @@ fn data_id_for_alloc_id<B: Backend>(
  ) -> DataId {
  module
  .declare_data(
  - &format!("__alloc_{}", alloc_id.0),
  + &format!("__alloc_{:x}", alloc_id.0),
  Linkage::Local,
  mutability == rustc_hir::Mutability::Mut,
  false,
  