T18834a.hs:6:10: warning: [GHC-47082] [-Woperator-whitespace-ext-conflict (in -Wdefault)]
    The prefix use of a ‘$’ would denote an untyped splice
      were the TemplateHaskell extension enabled.
    Suggested fix: Add whitespace after the ‘$’.

T18834a.hs:7:10: warning: [GHC-47082] [-Woperator-whitespace-ext-conflict (in -Wdefault)]
    The prefix use of a ‘$$’ would denote a typed splice
      were the TemplateHaskell extension enabled.
    Suggested fix: Add whitespace after the ‘$$’.

T18834a.hs:8:10: warning: [GHC-47082] [-Woperator-whitespace-ext-conflict (in -Wdefault)]
    The prefix use of a ‘%’ would denote a multiplicity annotation
      were the LinearTypes extension enabled.
    Suggested fix: Add whitespace after the ‘%’.