Add code to select.c for printing the contents of parse-tree structures.

The code is normally omitted.  You must compile with -DSQLITE_TEST
or -DSQLITE_DEBUG to enable it. (CVS 3606)

FossilOrigin-Name: 1b26d6875612a0ed25d6e293f005ea4966692759

src/printf.c

@@ -857,7 +857,7 @@ void sqlite3DebugPrintf(const char *zFormat, ...){
   va_start(ap, zFormat);
   base_vprintf(0, 0, zBuf, sizeof(zBuf), zFormat, ap);
   va_end(ap);
-  fprintf(stdout,"%d: %s", getpid(), zBuf);
+  fprintf(stdout,"%s", zBuf);
   fflush(stdout);
 }
 #endif