dump: Handle let-else properly

gcc/rust/ChangeLog:

	* ast/rust-ast-collector.cc (TokenCollector::visit): Add handling for diverging else
	expression.

Author: CohenArthur

gcc/rust/ast/rust-ast-collector.cc

@@ -22,6 +22,7 @@
 #include "rust-expr.h"
 #include "rust-item.h"
 #include "rust-keyword-values.h"
+#include "rust-location.h"
 #include "rust-path.h"
 #include "rust-system.h"
 #include "rust-token.h"
@@ -2587,6 +2588,13 @@ TokenCollector::visit (LetStmt &stmt)
       push (Rust::Token::make (EQUAL, UNDEF_LOCATION));
       visit (stmt.get_init_expr ());
     }
+
+  if (stmt.has_else_expr ())
+    {
+      push (Rust::Token::make (ELSE, UNDEF_LOCATION));
+      visit (stmt.get_else_expr ());
+    }
+
   push (Rust::Token::make (SEMICOLON, UNDEF_LOCATION));
 }