Added the test case for bug#21677: Wrong result when comparing a DATE and a DATETIME in BETWEEN
  Corrected a test case after removal of fix for bug#16377
query_cache.result, func_time.test, view.result, view.test, func_time.result:
  Corrected a test case after removal of fix for bug#16377
type_date.test:
  Added the test case for bug#21677: Wrong result when comparing a DATE and a DATETIME in BETWEEN
   Corrected a test case after removal of fix for bug#16377
item_cmpfunc.cc:
  Removed changes to the Item_func_between::fix_length_and_dec() made in the fix for bug#16377


mysql-test/t/view.test:
  Corrected a test case after removal of fix for bug#16377
mysql-test/t/type_date.test:
  Added the test case for bug#21677: Wrong result when comparing a DATE and a DATETIME in BETWEEN
   Corrected a test case after removal of fix for bug#16377
mysql-test/t/func_time.test:
  Corrected a test case after removal of fix for bug#16377
mysql-test/r/view.result:
  Corrected a test case after removal of fix for bug#16377
mysql-test/r/type_date.result:
  Added the test case for bug#21677: Wrong result when comparing a DATE and a DATETIME in BETWEEN
  Corrected a test case after removal of fix for bug#16377
mysql-test/r/query_cache.result:
  Corrected a test case after removal of fix for bug#16377
mysql-test/r/func_time.result:
  Corrected a test case after removal of fix for bug#16377
sql/item_cmpfunc.cc:
  Removed changes to the Item_func_between::fix_length_and_dec() made in the fix for bug#16377