//
//
//
package org.abc
-----
Groovy script
  PsiComment(line comment)('//')
  PsiElement(new line)('\n')
  PsiComment(line comment)('//')
  PsiWhiteSpace('\n')
  PsiComment(line comment)('//')
  PsiWhiteSpace('\n')
  Package definition
    Modifiers
      <empty list>
    PsiElement(package)('package')
    PsiWhiteSpace(' ')
    Reference element
      Reference element
        PsiElement(identifier)('org')
      PsiElement(.)('.')
      PsiElement(identifier)('abc')