REGEXP_FILE
  RegExpPatternImpl: <[i-[:]]*>
    RegExpBranchImpl: <[i-[:]]*>
      RegExpClosureImpl: <[i-[:]]*>
        RegExpClassImpl: <[i-[:]]>
          PsiElement(CLASS_BEGIN)('[')
          RegExpCharImpl: <i>
            PsiElement(CHARACTER)('i')
          RegExpCharImpl: <->
            PsiElement(MINUS)('-')
          RegExpClassImpl: <[:]>
            PsiElement(CLASS_BEGIN)('[')
            RegExpCharImpl: <:>
              PsiElement(CHARACTER)(':')
            PsiElement(CLASS_END)(']')
          PsiElement(CLASS_END)(']')
        RegExpQuantifierImpl: <*>
          PsiElement(STAR)('*')