fn walkArrayType(w: *Walk, array_type: Ast.full.ArrayType) Error!void
fn walkArrayType(w: *Walk, array_type: Ast.full.ArrayType) Error!void { try walkExpression(w, array_type.ast.elem_count); if (array_type.ast.sentinel.unwrap()) |sentinel| { try walkExpression(w, sentinel); } return walkExpression(w, array_type.ast.elem_type); }