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Revision 36434

  • parse.y (primary): allow an empty grouped expression as the
    operand of the not operator (e.g., not ()).
    [ruby-core:45976] [Bug #6674]

  • parse.y (parser_yylex): show no warning for a grouped expression
    as the operand of the not operator (e.g., not (a)) or as an
    argument of a method call without parentheses (e.g., foo (a)).
    [ruby-core:39050] [Bug #5214]