PsiJavaFile:SwitchLabelsIncomplete1.java
  PsiSwitchLabelStatement
    PsiKeyword:case('case')
    PsiWhiteSpace(' ')
    PsiCaseLabelElementList
      PsiLiteralExpression:2
        PsiJavaToken:INTEGER_LITERAL('2')
    PsiErrorElement:':' or '->' expected
      <empty list>