Flush DBUG log in case of DBUG_ASSERT()

Added strings_def.h into strings library to be able to have a DBUG_ASSERT() version without _db_flush() call (as strings.a should not depend on dbug.a)
Remove include of m_string.h in all string files (as it's included by string_def.h).
Fixed include order.
Changed "m_ctype.h" -> <m_ctype.h>

 

include/my_dbug.h:
  Flush DBUG log in case of DBUG_ASSERT()
strings/bchange.c:
  Include strings_def.h
strings/bcmp.c:
  Include strings_def.h
strings/bfill.c:
  Include strings_def.h
strings/bmove.c:
  Include strings_def.h
strings/bmove512.c:
  Include strings_def.h
strings/bmove_upp.c:
  Include strings_def.h
strings/conf_to_src.c:
  Include strings_def.h
  Fixed copyright
strings/ctype-big5.c:
  Include strings_def.h
strings/ctype-bin.c:
  Include strings_def.h
strings/ctype-cp932.c:
  Include strings_def.h
strings/ctype-czech.c:
  Include strings_def.h
strings/ctype-euc_kr.c:
  Include strings_def.h
strings/ctype-eucjpms.c:
  Include strings_def.h
strings/ctype-extra.c:
  Include strings_def.h
strings/ctype-gbk.c:
  Include strings_def.h
strings/ctype-latin1.c:
  Include strings_def.h
strings/ctype-mb.c:
  Include strings_def.h
strings/ctype-simple.c:
  Include strings_def.h
strings/ctype-sjis.c:
  Include strings_def.h
strings/ctype-tis620.c:
  Include strings_def.h
strings/ctype-uca.c:
  Include strings_def.h
strings/ctype-ucs2.c:
  Include strings_def.h
strings/ctype-ujis.c:
  Include strings_def.h
strings/ctype-utf8.c:
  Include strings_def.h
strings/ctype-win1250ch.c:
  Include strings_def.h
strings/ctype.c:
  Include strings_def.h
strings/decimal.c:
  Include strings_def.h
strings/do_ctype.c:
  Include strings_def.h
strings/int2str.c:
  Include strings_def.h
strings/is_prefix.c:
  Include strings_def.h
strings/llstr.c:
  Include strings_def.h
strings/longlong2str.c:
  Include strings_def.h
strings/longlong2str_asm.c:
  Include strings_def.h
strings/my_strchr.c:
  Include strings_def.h
strings/my_strtoll10.c:
  Include strings_def.h
strings/my_vsnprintf.c:
  Include strings_def.h
strings/r_strinstr.c:
  Include strings_def.h
strings/str2int.c:
  Include strings_def.h
strings/str_alloc.c:
  Include strings_def.h
strings/str_test.c:
  Include strings_def.h
  Fixed compiler warnings
strings/strappend.c:
  Include strings_def.h
strings/strcend.c:
  Include strings_def.h
strings/strcont.c:
  Include strings_def.h
strings/strend.c:
  Include strings_def.h
strings/strfill.c:
  Include strings_def.h
strings/strinstr.c:
  Include strings_def.h
strings/strmake.c:
  Include strings_def.h
strings/strmov.c:
  Include strings_def.h
strings/strmov_overlapp.c:
  Include strings_def.h
strings/strnlen.c:
  Include strings_def.h
strings/strnmov.c:
  Include strings_def.h
strings/strstr.c:
  Include strings_def.h
strings/strto.c:
  Include strings_def.h
strings/strtod.c:
  Include strings_def.h
strings/strtol.c:
  Include strings_def.h
strings/strtoll.c:
  Include strings_def.h
strings/strtoul.c:
  Include strings_def.h
strings/strtoull.c:
  Include strings_def.h
strings/strxmov.c:
  Include strings_def.h
strings/strxnmov.c:
  Include strings_def.h
strings/uctypedump.c:
  Include strings_def.h
  Fixed compiler warnings
  Removed double include of m_ctype.h
strings/udiv.c:
  Include strings_def.h
strings/xml.c:
  Include strings_def.h

strings/r_strinstr.c

@@ -22,8 +22,7 @@
   the pattern counted from the begining of the string.
 */
 
-#include <my_global.h>
-#include "m_string.h"
+#include "strings_def.h"
 
 size_t r_strinstr(reg1 const char * str, size_t from, reg4 const char * search)
 {