[sql] Import reference version of SQLite 3.10.2.

third_party/sqlite/sqlite-src-3100200/ext/fts1/ft_hash.c

 /*
 ** 2001 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.
 **
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   if( pH->count > pH->htsize ){
     rehash(pH,pH->htsize*2);
   }
   assert( pH->htsize>0 );
   assert( (pH->htsize & (pH->htsize-1))==0 );
   h = hraw & (pH->htsize-1);
   insertElement(pH, &pH->ht[h], new_elem);
   new_elem->data = data;
   return 0;
 }