Failed to parse interpolated verbatim string

[vanessa-rodrigues]

The following code displays an error when parsing.

var p = 1;
var c = $@"""{p}""";

(compilation_unit [0, 0] - [1, 20]
  (global_statement [0, 0] - [0, 10]
    (local_declaration_statement [0, 0] - [0, 10]
      (variable_declaration [0, 0] - [0, 9]
        type: (implicit_type [0, 0] - [0, 3])
        (variable_declarator [0, 4] - [0, 9]
          name: (identifier [0, 4] - [0, 5])
          (integer_literal [0, 8] - [0, 9])))))
  (ERROR [1, 0] - [1, 20]
    (implicit_type [1, 0] - [1, 3])
    (identifier [1, 4] - [1, 5])
    (interpolation_start [1, 8] - [1, 10])
    (interpolation [1, 11] - [1, 16]
      (interpolation_brace [1, 11] - [1, 14])
      (identifier [1, 14] - [1, 15])
      (interpolation_brace [1, 15] - [1, 16]))
    (string_content [1, 16] - [1, 20])))
.\tests.cs         0.52 ms          62 bytes/ms (ERROR [1, 0] - [1, 20])