[COMMITTED 138/146] gccrs: derive(Clone): Use lang item for PhantomData in Clone

[arthur . cohen]

From: Arthur Cohen <arthur.co...@embecosm.com>

gcc/rust/ChangeLog:

        * expand/rust-derive-clone.cc (DeriveClone::visit_union): Create a lang 
item path
        instead of a regular path.
---
 gcc/rust/expand/rust-derive-clone.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gcc/rust/expand/rust-derive-clone.cc 
b/gcc/rust/expand/rust-derive-clone.cc
index 8093bf67ff0..2f733fae910 100644
--- a/gcc/rust/expand/rust-derive-clone.cc
+++ b/gcc/rust/expand/rust-derive-clone.cc
@@ -263,7 +263,7 @@ DeriveClone::visit_union (Union &item)
     {StructField (
       Identifier ("_t"),
       builder.single_generic_type_path (
-       "PhantomData",
+       LangItem::Kind::PHANTOM_DATA,
        GenericArgs (
          {}, {GenericArg::create_type (builder.single_type_path ("T"))}, {})),
       Visibility::create_private (), item.get_locus ())});
-- 
2.45.2