Use name resolver 2.0 for compiling break/continue

gcc/rust/ChangeLog:

	* backend/rust-compile-expr.cc
	(CompileExpr::visit): Use name resolver 2.0 to lookup label
	definitions for break and continue statements when name
	resolution 2.0 is enabled.

Signed-off-by: Owen Avery <powerboat9.gamer@gmail.com>

gcc/rust/backend/rust-compile-expr.cc

@@ -753,8 +753,24 @@ CompileExpr::visit (HIR::BreakExpr &expr)
   if (expr.has_label ())
     {
       NodeId resolved_node_id = UNKNOWN_NODEID;
-      if (!ctx->get_resolver ()->lookup_resolved_label (
-	    expr.get_label ().get_mappings ().get_nodeid (), &resolved_node_id))
+      if (flag_name_resolution_2_0)
+	{
+	  auto &nr_ctx
+	    = Resolver2_0::ImmutableNameResolutionContext::get ().resolver ();
+
+	  if (auto id
+	      = nr_ctx.lookup (expr.get_label ().get_mappings ().get_nodeid ()))
+	    resolved_node_id = *id;
+	}
+      else
+	{
+	  NodeId tmp = UNKNOWN_NODEID;
+	  if (ctx->get_resolver ()->lookup_resolved_label (
+		expr.get_label ().get_mappings ().get_nodeid (), &tmp))
+	    resolved_node_id = tmp;
+	}
+
+      if (resolved_node_id == UNKNOWN_NODEID)
 	{
 	  rust_error_at (
 	    expr.get_label ().get_locus (),
@@ -799,8 +815,25 @@ CompileExpr::visit (HIR::ContinueExpr &expr)
   if (expr.has_label ())
     {
       NodeId resolved_node_id = UNKNOWN_NODEID;
-      if (!ctx->get_resolver ()->lookup_resolved_label (
-	    expr.get_label ().get_mappings ().get_nodeid (), &resolved_node_id))
+      if (flag_name_resolution_2_0)
+	{
+	  auto &nr_ctx
+	    = Resolver2_0::ImmutableNameResolutionContext::get ().resolver ();
+
+	  if (auto id
+	      = nr_ctx.lookup (expr.get_label ().get_mappings ().get_nodeid ()))
+	    resolved_node_id = *id;
+	}
+      else
+	{
+	  NodeId tmp = UNKNOWN_NODEID;
+
+	  if (ctx->get_resolver ()->lookup_resolved_label (
+		expr.get_label ().get_mappings ().get_nodeid (), &tmp))
+	    resolved_node_id = tmp;
+	}
+
+      if (resolved_node_id == UNKNOWN_NODEID)
 	{
 	  rust_error_at (
 	    expr.get_label ().get_locus (),