[sql] Import reference version of SQLite 3.8.7.4.

third_party/sqlite/sqlite-src-3080704/test/where5.test

 # 2007 June 8
 #
 # 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 268 matching lines @@
     SELECT x IS NULL FROM t3
   }
 } {0 0 0}
 do_test where5-4.7 {
   execsql {
     SELECT x IS NOT NULL FROM t3
   }
 } {1 1 1}
 
 finish_test