================================================================================
String literals
================================================================================

A : String := "12'34";

--------

(compilation
  (compilation_unit
    (object_declaration
      (identifier)
      (identifier)
      (expression
        (term
          (string_literal))))))

================================================================================
String literals with quotes
================================================================================

A : String := "12""23";

--------

(compilation
  (compilation_unit
    (object_declaration
      (identifier)
      (identifier)
      (expression
        (term
          (string_literal))))))