Fixed portability issue in my_thr_init.c (was added in my last push)

Fixed compiler warnings (detected by VC++):
- Removed not used variables
- Added casts
- Fixed wrong assignments to bool
- Fixed wrong calls with bool arguments
- Added missing argument to store(longlong), which caused wrong store method to be called.



client/mysqldump.c:
  Removed compiler warning
heap/hp_clear.c:
  Removed compiler warning
include/my_global.h:
  Removed compiler warning
include/my_tree.h:
  Changed memory limits from int to ulong
  (Allowed me to get rid of some compiler warnings)
myisam/mi_create.c:
  Removed compiler warning
myisam/myisampack.c:
  Removed compiler warning
mysys/base64.c:
  Removed compiler warning
mysys/my_thr_init.c:
  Fixed portability issue (detected on windows)
  Added DBUG_ASSERT to detect if we call my_thread_end() too many times
  Don't wait if THR_thread_count == -1 (error condition)
mysys/tree.c:
  Removed compiler warning
sql/field.cc:
  Removed compiler warning
  Fixed wrong parameter to check_date()
  Added missing argument to store(longlong)
sql/ha_archive.cc:
  Removed compiler warning
sql/ha_federated.cc:
  Removed compiler warning
sql/ha_innodb.cc:
  Removed not used variable
sql/handler.cc:
  Removed not used variable
  Fixed wrong if (we didn't detect if rollback or commit failed). Not critical as value is not yet used
sql/item.cc:
  Removed compiler warning
sql/item_func.cc:
  Removed compiler warning
sql/item_strfunc.cc:
  Removed compiler warning
sql/item_timefunc.cc:
  Removed compiler warning
sql/log.cc:
  Removed compiler warning
sql/mysql_priv.h:
  Removed compiler warning
sql/opt_range.cc:
  Removed compiler warning
sql/password.c:
  Removed compiler warning
sql/set_var.cc:
  Removed compiler warning
sql/slave.cc:
  Removed compiler warning
sql/sp.cc:
  Removed compiler warning
sql/sp_cache.cc:
  Removed compiler warning
sql/sp_head.cc:
  Removed compiler warning
  Adjusted argument to reserve() to not use up too much memory that we are probably not going to need
sql/sql_acl.cc:
  Added missing argument to store(longlong)
sql/sql_base.cc:
  Removed compiler warning
sql/sql_db.cc:
  Removed compiler warning
sql/sql_delete.cc:
  Removed compiler warning
sql/sql_handler.cc:
  Removed not used variable
sql/sql_lex.h:
  Removed not used variable
sql/sql_prepare.cc:
  Removed not used variable
sql/sql_rename.cc:
  Removed not used variable
sql/sql_select.cc:
  Fixed that select_options are not 'cut'
  Removed some not used variables
  Removed compiler warnings by adding cast
sql/sql_show.cc:
  Removed not used variables
  Added missing argument to store(longlong)
  Removed compiler warnings
sql/sql_trigger.cc:
  Removed not used variables
  Added cast to remove compiler warnings
sql/sql_update.cc:
  Fixed wrong set of bool variable
sql/sql_view.cc:
  Removed not used variables
  Added cast to get rid of compiler warnings
sql-common/client.c:
  Fixed compiler warning
sql-common/my_time.c:
  Fixed wrong argument to check_date()
  Added casts to get rid of compiler warnings
sql/sql_yacc.yy:
  Removed not used variable
sql/uniques.cc:
  Changes memory size from uint to ulong
  Added casts to get rid of compiler warnings
strings/ctype-simple.c:
  Fixed cast to get rid of compiler warnings

sql/field.cc

@@ -4813,7 +4813,7 @@ int Field_time::store_time(TIME *ltime, timestamp_type type)
             (ltime->minute * 100 + ltime->second);
   if (ltime->neg)
     tmp= -tmp;
-  return Field_time::store((longlong) tmp);
+  return Field_time::store((longlong) tmp, FALSE);
 }
 
 
@@ -5409,11 +5409,11 @@ int Field_newdate::store_time(TIME *ltime,timestamp_type type)
   if (type == MYSQL_TIMESTAMP_DATE || type == MYSQL_TIMESTAMP_DATETIME)
   {
     tmp=ltime->year*16*32+ltime->month*32+ltime->day;
-    if ((my_bool)check_date(ltime, tmp,
-                            (TIME_FUZZY_DATE |
-                             (current_thd->variables.sql_mode &
-                              (MODE_NO_ZERO_IN_DATE | MODE_NO_ZERO_DATE |
-                               MODE_INVALID_DATES))), &error))
+    if (check_date(ltime, tmp != 0,
+                   (TIME_FUZZY_DATE |
+                    (current_thd->variables.sql_mode &
+                     (MODE_NO_ZERO_IN_DATE | MODE_NO_ZERO_DATE |
+                      MODE_INVALID_DATES))), &error))
     {
       char buff[12];
       String str(buff, sizeof(buff), &my_charset_latin1);
@@ -5633,11 +5633,11 @@ int Field_datetime::store_time(TIME *ltime,timestamp_type type)
   {
     tmp=((ltime->year*10000L+ltime->month*100+ltime->day)*LL(1000000)+
 	 (ltime->hour*10000L+ltime->minute*100+ltime->second));
-    if ((my_bool)check_date(ltime, tmp,
-                            (TIME_FUZZY_DATE |
-                             (current_thd->variables.sql_mode &
-                              (MODE_NO_ZERO_IN_DATE | MODE_NO_ZERO_DATE |
-                               MODE_INVALID_DATES))), &error))
+    if (check_date(ltime, tmp != 0,
+                   (TIME_FUZZY_DATE |
+                    (current_thd->variables.sql_mode &
+                     (MODE_NO_ZERO_IN_DATE | MODE_NO_ZERO_DATE |
+                      MODE_INVALID_DATES))), &error))
     {
       char buff[19];
       String str(buff, sizeof(buff), &my_charset_latin1);
@@ -8076,7 +8076,7 @@ int Field_bit::store_decimal(const my_decimal *val)
 {
   int err= 0;
   longlong i= convert_decimal2longlong(val, 1, &err);
-  return test(err | store(i));
+  return test(err | store(i, TRUE));
 }
 
 
@@ -8229,7 +8229,7 @@ Field_bit_as_char::Field_bit_as_char(char *ptr_arg, uint32 len_arg,
 int Field_bit_as_char::store(const char *from, uint length, CHARSET_INFO *cs)
 {
   int delta;
-  uchar bits= field_length & 7;
+  uchar bits= (uchar) (field_length & 7);
 
   for (; length && !*from; from++, length--);          // skip left 0's
   delta= bytes_in_rec - length;