[sql] Import reference version of SQLite 3.8.7.4.

third_party/sqlite/sqlite-src-3080704/tool/speedtest16.c

 /*
 ** Performance test for SQLite.
 **
 ** This program reads ASCII text from a file named on the command-line.
 ** It converts each SQL statement into UTF16 and submits it to SQLite
 ** for evaluation.  A new UTF16 database is created at the beginning of
 ** the program.  All statements are timed using the high-resolution timer
 ** built into Intel-class processors.
 **
 ** To compile this program, first compile the SQLite library separately
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   printf("Statements run:       %15d\n", nStmt);
   printf("Bytes of SQL text:    %15d\n", nByte);
   printf("Total prepare time:   %15llu cycles\n", prepTime);
   printf("Total run time:       %15llu cycles\n", runTime);
   printf("Total finalize time:  %15llu cycles\n", finalizeTime);
   printf("Open/Close time:      %15llu cycles\n", iSetup);
   printf("Total Time:           %15llu cycles\n",
       prepTime + runTime + finalizeTime + iSetup);
   return 0;
 }