================================================================================
Simple compile time selector
================================================================================
name.$(some)
name.$(some.other)
--------------------------------------------------------------------------------

(source_file
  (simple_statement
    (selector_expression
      (reference_expression
        (identifier))
      (compile_time_selector_expression
        (reference_expression
          (identifier)))))
  (simple_statement
    (selector_expression
      (reference_expression
        (identifier))
      (compile_time_selector_expression
        (selector_expression
          (reference_expression
            (identifier))
          (reference_expression
            (identifier)))))))
