Removed not used functions from sql_cache

Added new tests to testsuite.


extra/resolveip.c:
  Portabilit fix.
mysql-test/create-test-result:
  Fix for new mysql-test-run
mysql-test/r/query_cache.result:
  Updated benchmarks
mysql-test/t/query_cache-master.opt:
  Updated benchmarks
mysql-test/t/query_cache.test:
  Updated benchmarks
sql/sql_cache.cc:
  Removed not used functions
sql/sql_cache.h:
  Removed not used functions

extra/resolveip.c

@@ -22,9 +22,7 @@
 #include <m_ctype.h>
 #include <my_net.h>
 #include <my_sys.h>
-#ifndef SCO
 #include <m_string.h>
-#endif
 #include <sys/types.h>
 #include <sys/socket.h>
 #ifndef HAVE_BROKEN_NETINET_INCLUDES
@@ -34,10 +32,16 @@
 #include <netdb.h>
 #include <getopt.h>
 
+#ifdef SCO
+#undef h_errno
+#define h_errno errno
+#endif
+
 #if !defined(_AIX) && !defined(HAVE_UNIXWARE7_THREADS) && !defined(HAVE_UNIXWARE7_POSIX) && !defined(h_errno)
 extern int h_errno;
 #endif
 
+
 static int silent=0;
 
 static struct option long_options[] =