[sql] Import reference version of SQLite 3.10.2.

third_party/sqlite/sqlite-src-3100200/src/test_async.c

 /*
 ** 2005 December 14
 **
 ** 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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 #ifdef SQLITE_ENABLE_ASYNCIO
   Tcl_CreateObjCommand(interp,"sqlite3async_start",testAsyncStart,0,0);
   Tcl_CreateObjCommand(interp,"sqlite3async_wait",testAsyncWait,0,0);
 
   Tcl_CreateObjCommand(interp,"sqlite3async_control",testAsyncControl,0,0);
   Tcl_CreateObjCommand(interp,"sqlite3async_initialize",testAsyncInit,0,0);
   Tcl_CreateObjCommand(interp,"sqlite3async_shutdown",testAsyncShutdown,0,0);
 #endif  /* SQLITE_ENABLE_ASYNCIO */
   return TCL_OK;
 }