plugins/groovy/testdata/parsing/groovy/expressions/regex/regex_begin2.test

       /temp_regex/
-----
Groovy script
  PsiWhiteSpace('       ')
  Literal
    GroovyASTPsiElementImpl(regex literal)
      PsiElement(regex begin)('/')
      PsiElement(regex content)('temp_regex')
      PsiElement(regex end)('/')