[COMMITTED 196/220] gccrs: Fix ICE for ast dump of deferred anon const

[arthur . cohen]

From: Philip Herron <herron.phi...@googlemail.com>

gcc/rust/ChangeLog:

        * ast/rust-ast-collector.cc (TokenCollector::visit): check for value

Signed-off-by: Philip Herron <herron.phi...@googlemail.com>
---
 gcc/rust/ast/rust-ast-collector.cc | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/gcc/rust/ast/rust-ast-collector.cc 
b/gcc/rust/ast/rust-ast-collector.cc
index f4033ad4aae..b27a3af11e8 100644
--- a/gcc/rust/ast/rust-ast-collector.cc
+++ b/gcc/rust/ast/rust-ast-collector.cc
@@ -1274,7 +1274,13 @@ TokenCollector::visit (BlockExpr &expr)
 void
 TokenCollector::visit (AnonConst &expr)
 {
-  visit (expr.get_inner_expr ());
+  if (!expr.is_deferred ())
+    {
+      visit (expr.get_inner_expr ());
+      return;
+    }
+
+  push (Rust::Token::make_string (expr.get_locus (), "_"));
 }
 
 void
-- 
2.49.0