gccrs: Fix warnings from const auto& to const auto

gcc/rust/ChangeLog:

	* resolve/rust-ast-resolve.cc (NameResolution::go):
	Fix warnings from const auto& to const auto

diff --git a/gcc/rust/resolve/rust-ast-resolve.cc b/gcc/rust/resolve/rust-ast-resolve.cc
index a467d1e38b4cff1a1d5d8ce8d1887c5e72fdf855..a093ef7f444d44cead0161ae9c9465eb7bfd5262 100644 (file)
--- a/gcc/rust/resolve/rust-ast-resolve.cc
+++ b/gcc/rust/resolve/rust-ast-resolve.cc
@@ -63,7 +63,10 @@ NameResolution::go (AST::Crate &crate)
 {
   // lookup current crate name
   CrateNum cnum = mappings.get_current_crate ();
-  const auto &crate_name = mappings.get_crate_name (cnum).value ();
+
+  // Clones the crate name instead of references due to gcc's possibly
+  // dangling references warnings
+  const auto crate_name = mappings.get_crate_name (cnum).value ();
 
   // setup the ribs
   NodeId scope_node_id = crate.get_node_id ();