gccrs: Make Attribute parent class Visitable public

These changes allows interfacing with attributes as a Visitable node.

gcc/rust/ChangeLog:

	* ast/rust-ast.h (class Attribute): Make visitable parent class public.

Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

diff --git a/gcc/rust/ast/rust-ast.h b/gcc/rust/ast/rust-ast.h
index 2185f4b031f675ed16643396d6b24f21d554bd96..47587a162d4d2f7a7aa71cfbd64d3213adb71158 100644 (file)
--- a/gcc/rust/ast/rust-ast.h
+++ b/gcc/rust/ast/rust-ast.h
@@ -566,7 +566,7 @@ protected:
 
 // aka Attr
 // Attribute AST representation
-class Attribute : Visitable
+class Attribute : public Visitable
 {
   SimplePath path;