correct printing of aliases


mysql-test/r/lowercase_view.result:
  aliases in VIEWs
mysql-test/t/lowercase_view.test:
  aliases in VIEWs
sql/item.cc:
  tracking using aliases in indentifiers
sql/item.h:
  tracking using aliases in indentifiers
sql/sql_base.cc:
  tracking using aliases in indentifiers
sql/sql_lex.cc:
  tracking using aliases in indentifiers
sql/sql_lex.h:
  tracking using aliases in indentifiers
sql/table.h:
  tracking using aliases in indentifiers