FILE
  LSSearchDirCommandImpl(SEARCH_DIR_COMMAND)
    PsiElement(SEARCH_DIR)('SEARCH_DIR')
    PsiElement(()('(')
    PsiElement(IDENTIFIER)('path')
    PsiElement())(')')
  PsiWhiteSpace('\n\n')
  LSSearchDirCommandImpl(SEARCH_DIR_COMMAND)
    PsiElement(SEARCH_DIR)('SEARCH_DIR')
    PsiElement(()('(')
    PsiElement(IDENTIFIER)('nested/path')
    PsiElement())(')')