FILE
  CommandLineCommandImpl(COMMAND)
    PsiElement(LITERAL_STARTS_FROM_LETTER)('command')
  PsiWhiteSpace(' ')
  CommandLineOptionImpl(OPTION)
    PsiElement(LONG_OPTION_NAME_TOKEN)('--bad_value')
    PsiErrorElement:Space between argument is its value is unexpected
      <empty list>
    PsiElement(=)('=')