fix(slang-tidy): #1206 added a guard against null syntax

[rhanqtl]

No description provided.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.58%. Comparing base (f3d557a) to head (ddc8179).
Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1243   +/-   ##
=======================================
  Coverage   94.58%   94.58%           
=======================================
  Files         211      211           
  Lines       52154    52154           
=======================================
  Hits        49329    49329           
  Misses       2825     2825           

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