Update gcc/rust/util/rust-mapping-common.h

Co-authored-by: CohenArthur <[email protected]>

Author: philberty

gcc/rust/util/rust-mapping-common.h

@@ -55,6 +55,7 @@ struct DefId
   {
     std::string buf;
     buf += std::to_string (crateNum);
+    buf += " "; // or anything else
     buf += std::to_string (localDefId);
     return buf;
   }