Error when initializing an `auto const&` via parenthesis with a singleton getter

Example code:

void f() {
	auto const& ref(Namespace::Class::instance().getter());

	char const *sql = R""(
select JOHN
from DOE
)"";
}

Produces AST with an error that messes up syntax highlighting (see getter() not highlighted and weird highlighting attempts on words inside of a raw string):

According to Tree-sitter playground produces AST with an error, but is able to recognize the raw string correctly:

[translation_unit](https://tree-sitter.github.io/tree-sitter/playground#) [0, 0] - [8, 0]
  [function_definition](https://tree-sitter.github.io/tree-sitter/playground#) [0, 0] - [7, 1]
    type: [primitive_type](https://tree-sitter.github.io/tree-sitter/playground#) [0, 0] - [0, 4]
    declarator: [function_declarator](https://tree-sitter.github.io/tree-sitter/playground#) [0, 5] - [0, 8]
      declarator: [identifier](https://tree-sitter.github.io/tree-sitter/playground#) [0, 5] - [0, 6]
      parameters: [parameter_list](https://tree-sitter.github.io/tree-sitter/playground#) [0, 6] - [0, 8]
    body: [compound_statement](https://tree-sitter.github.io/tree-sitter/playground#) [0, 9] - [7, 1]
      [declaration](https://tree-sitter.github.io/tree-sitter/playground#) [1, 1] - [1, 56]
        type: [placeholder_type_specifier](https://tree-sitter.github.io/tree-sitter/playground#) [1, 1] - [1, 5]
          [auto](https://tree-sitter.github.io/tree-sitter/playground#) [1, 1] - [1, 5]
        [type_qualifier](https://tree-sitter.github.io/tree-sitter/playground#) [1, 6] - [1, 11]
        declarator: [reference_declarator](https://tree-sitter.github.io/tree-sitter/playground#) [1, 11] - [1, 55]
          [function_declarator](https://tree-sitter.github.io/tree-sitter/playground#) [1, 13] - [1, 55]
            declarator: [identifier](https://tree-sitter.github.io/tree-sitter/playground#) [1, 13] - [1, 16]
            parameters: [parameter_list](https://tree-sitter.github.io/tree-sitter/playground#) [1, 16] - [1, 55]
              [parameter_declaration](https://tree-sitter.github.io/tree-sitter/playground#) [1, 17] - [1, 54]
                type: [qualified_identifier](https://tree-sitter.github.io/tree-sitter/playground#) [1, 17] - [1, 43]
                  scope: [namespace_identifier](https://tree-sitter.github.io/tree-sitter/playground#) [1, 17] - [1, 26]
                  name: [qualified_identifier](https://tree-sitter.github.io/tree-sitter/playground#) [1, 28] - [1, 43]
                    scope: [namespace_identifier](https://tree-sitter.github.io/tree-sitter/playground#) [1, 28] - [1, 33]
                    name: [type_identifier](https://tree-sitter.github.io/tree-sitter/playground#) [1, 35] - [1, 43]
                [ERROR](https://tree-sitter.github.io/tree-sitter/playground#) [1, 43] - [1, 46]
                  [parameter_list](https://tree-sitter.github.io/tree-sitter/playground#) [1, 43] - [1, 45]
                declarator: [function_declarator](https://tree-sitter.github.io/tree-sitter/playground#) [1, 46] - [1, 54]
                  declarator: [identifier](https://tree-sitter.github.io/tree-sitter/playground#) [1, 46] - [1, 52]
                  parameters: [parameter_list](https://tree-sitter.github.io/tree-sitter/playground#) [1, 52] - [1, 54]
      [declaration](https://tree-sitter.github.io/tree-sitter/playground#) [3, 1] - [6, 4]
        type: [primitive_type](https://tree-sitter.github.io/tree-sitter/playground#) [3, 1] - [3, 5]
        [type_qualifier](https://tree-sitter.github.io/tree-sitter/playground#) [3, 6] - [3, 11]
        declarator: [init_declarator](https://tree-sitter.github.io/tree-sitter/playground#) [3, 12] - [6, 3]
          declarator: [pointer_declarator](https://tree-sitter.github.io/tree-sitter/playground#) [3, 12] - [3, 16]
            declarator: [identifier](https://tree-sitter.github.io/tree-sitter/playground#) [3, 13] - [3, 16]
          value: [raw_string_literal](https://tree-sitter.github.io/tree-sitter/playground#) [3, 19] - [6, 3]

Reproduce the C++ snippet in the Tree-sitter playground and inspect the AST around the auto const& declaration and the following raw string literal. Start with the C++ grammar entry points for declarations and declarators. Done means the getter call parses without an ERROR node and the raw string remains correctly recognized for syntax highlighting.