Parsing failure with preocessor expressions

[WillLillis]

After CI failed in #340, I found that a new file had been added to the example set since the last run, which fails to parse. I tried cutting it down to the following minimal example:

#if NETFRAMEWORK
    foo()
#else
#pragma warning disable CS0618
#endif

Parsing output:

(compilation_unit [0, 0] - [5, 0]
  (ERROR [0, 0] - [4, 6]
    (preproc_if [0, 0] - [4, 6]
      condition: (identifier [0, 4] - [0, 16])
      (invocation_expression [1, 4] - [1, 9]
        function: (identifier [1, 4] - [1, 7])
        arguments: (argument_list [1, 7] - [1, 9]))
      alternative: (preproc_else [2, 0] - [2, 5])
      (preproc_pragma [3, 0] - [4, 0]
        (identifier [3, 24] - [3, 30])))))
minimal.cs    0.20 ms         349 bytes/ms (ERROR [0, 0] - [4, 6])

For good measure, here is the relevant section and parsing output for the failed parse of the full file as well:

(ERROR [346, 0] - [352, 6]
  (array_type [346, 4] - [350, 28]
    type: (array_type [346, 4] - [347, 28]
      type: (identifier [346, 4] - [346, 16])
      rank: (array_rank_specifier [347, 12] - [347, 28]
        (invocation_expression [347, 13] - [347, 27]
          function: (identifier [347, 13] - [347, 20])
          arguments: (argument_list [347, 20] - [347, 27]
            (argument [347, 21] - [347, 26]
              (integer_literal [347, 21] - [347, 26]))))))
    (comment [347, 29] - [347, 56])
    (ERROR [348, 0] - [348, 5])
    (preproc_pragma [349, 0] - [350, 0]
      (identifier [349, 24] - [349, 30]))
    rank: (array_rank_specifier [350, 12] - [350, 28]
      (invocation_expression [350, 13] - [350, 27]
        function: (identifier [350, 13] - [350, 20])
        arguments: (argument_list [350, 20] - [350, 27]
          (argument [350, 21] - [350, 26]
            (integer_literal [350, 21] - [350, 26]))))))
  (comment [350, 29] - [350, 56])
  (preproc_pragma [351, 0] - [352, 0]
    (identifier [351, 24] - [351, 30])))

...
#if NETFRAMEWORK
            [Timeout(2_000)] // Ok status will be Passedz
#else
#pragma warning disable CS0618
            [Timeout(2_000)] // Ok status will be Passed
#pragma warning restore CS0618
#endif
...

[amaanq]

yeah this is intentional in order to have more structured parsing for the majority of preproc defs, it should just be added to the ci list of failing files, which I have done now, sorry for the delay