PsiJetFileStubImpl[package=]
  PACKAGE_DIRECTIVE
  IMPORT_LIST
  PROPERTY[fqName=z, hasBackingField=true, hasDelegate=false, hasDelegateExpression=false, hasInitializer=false, hasReturnTypeRef=true, isExtension=false, isTopLevel=true, isVar=false, name=z]
    MODIFIER_LIST[public]
    TYPE_REFERENCE
      USER_TYPE
        USER_TYPE
          USER_TYPE
            REFERENCE_EXPRESSION[referencedName=java]
          REFERENCE_EXPRESSION[referencedName=io]
        REFERENCE_EXPRESSION[referencedName=PrintStream]
  FUN[fqName=foo, hasBody=true, hasNoExpressionBody=true, hasTypeParameterListBeforeFunctionName=false, isExtension=false, isTopLevel=true, mayHaveContract=false, name=foo]
    MODIFIER_LIST[public]
    VALUE_PARAMETER_LIST
    TYPE_REFERENCE
      USER_TYPE
        USER_TYPE
          REFERENCE_EXPRESSION[referencedName=kotlin]
        REFERENCE_EXPRESSION[referencedName=Unit]
