[committed 022/103] gccrs: Add mappings for fn_once lang item

[arthur . cohen]

From: Philip Herron <philip.her...@embecosm.com>

gcc/rust/ChangeLog:

        * util/rust-lang-item.h: Add `fn_once` lang item.
---
 gcc/rust/util/rust-lang-item.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/gcc/rust/util/rust-lang-item.h b/gcc/rust/util/rust-lang-item.h
index 4d9dc8a3d3a..c7e0e5c811d 100644
--- a/gcc/rust/util/rust-lang-item.h
+++ b/gcc/rust/util/rust-lang-item.h
@@ -73,6 +73,9 @@ public:
     MUT_PTR,
     CONST_SLICE_PTR,
 
+    // functions
+    FN_ONCE,
+
     UNKNOWN,
   };
 
@@ -218,6 +221,10 @@ public:
       {
        return ItemType::CONST_SLICE_PTR;
       }
+    else if (item.compare ("fn_once") == 0)
+      {
+       return ItemType::FN_ONCE;
+      }
 
     return ItemType::UNKNOWN;
   }
@@ -296,6 +303,8 @@ public:
        return "mut_ptr";
       case CONST_SLICE_PTR:
        return "const_slice_ptr";
+      case FN_ONCE:
+       return "fn_once";
 
       case UNKNOWN:
        return "<UNKNOWN>";
-- 
2.39.1