[sql] Import reference version of SQLite 3.7.6.3.

third_party/sqlite/sqlite-src-3070603/test/backcompat.test

 # 2010 August 19
 #
 # The author disclaims copyright to this source code.  In place of
 # a legal notice, here is a blessing:
 #
 #    May you do good and not evil.
 #    May you find forgiveness for yourself and forgive others.
 #    May you share freely, never taking more than you give.
 #
 #***********************************************************************
@@ skipping 425 matching lines @@
     } } {}
 
     foreach {n q} $::queries {
       do_test backcompat-4.6.$n [list sql1 $q] [sql2 $q]
     }
 
   }
 }
 
 finish_test