[sql] Import reference version of SQLite 3.10.2.

third_party/sqlite/sqlite-src-3100200/test/fkey_malloc.test

 # 2009 September 22
 #
 # 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 114 matching lines @@
   CREATE TABLE y(c, d,
     FOREIGN KEY(d, c) REFERENCES x DEFERRABLE INITIALLY DEFERRED
   );
   CREATE TABLE z(e, f, FOREIGN KEY(e, f) REFERENCES x);
 } -sqlbody {
   DROP TABLE y;
   DROP TABLE x;
 }
 
 finish_test