msvcrt: Add _mbctolower_l partial implementation.

dlls/msvcr100/msvcr100.spec

@@ -1088,7 +1088,7 @@
 @ cdecl _mbctokata(long)
 @ stub _mbctokata_l
 @ cdecl _mbctolower(long)
-@ stub _mbctolower_l
+@ cdecl _mbctolower_l(long ptr)
 @ cdecl _mbctombb(long)
 @ stub _mbctombb_l
 @ cdecl _mbctoupper(long)

dlls/msvcr110/msvcr110.spec

@@ -1445,7 +1445,7 @@
 @ cdecl _mbctokata(long)
 @ stub _mbctokata_l
 @ cdecl _mbctolower(long)
-@ stub _mbctolower_l
+@ cdecl _mbctolower_l(long ptr)
 @ cdecl _mbctombb(long)
 @ stub _mbctombb_l
 @ cdecl _mbctoupper(long)

dlls/msvcr120/msvcr120.spec

@@ -1456,7 +1456,7 @@
 @ cdecl _mbctokata(long)
 @ stub _mbctokata_l
 @ cdecl _mbctolower(long)
-@ stub _mbctolower_l
+@ cdecl _mbctolower_l(long ptr)
 @ cdecl _mbctombb(long)
 @ stub _mbctombb_l
 @ cdecl _mbctoupper(long)

dlls/msvcr80/msvcr80.spec

@@ -760,7 +760,7 @@
 @ cdecl _mbctokata(long)
 @ stub _mbctokata_l
 @ cdecl _mbctolower(long)
-@ stub _mbctolower_l
+@ cdecl _mbctolower_l(long ptr)
 @ cdecl _mbctombb(long)
 @ stub _mbctombb_l
 @ cdecl _mbctoupper(long)

dlls/msvcr90/msvcr90.spec

@@ -738,7 +738,7 @@
 @ cdecl _mbctokata(long)
 @ stub _mbctokata_l
 @ cdecl _mbctolower(long)
-@ stub _mbctolower_l
+@ cdecl _mbctolower_l(long ptr)
 @ cdecl _mbctombb(long)
 @ stub _mbctombb_l
 @ cdecl _mbctoupper(long)

dlls/msvcrt/mbcs.c

@@ -447,16 +447,24 @@ unsigned int CDECL _mbsnextc(const unsigned char* str)
 }
 
 /*********************************************************************
- *		_mbctolower(MSVCRT.@)
+ *		_mbctolower_l(MSVCRT.@)
  */
-unsigned int CDECL _mbctolower(unsigned int c)
+unsigned int CDECL _mbctolower_l(unsigned int c, _locale_t locale)
 {
-    if (_ismbblead(c))
+    if (_ismbblead_l(c, locale))
     {
       FIXME("Handle MBC chars\n");
       return c;
     }
-    return _tolower_l(c, NULL); /* ASCII CP or SB char */
+    return _tolower_l(c, locale); /* ASCII CP or SB char */
+}
+
+/*********************************************************************
+ *		_mbctolower(MSVCRT.@)
+ */
+unsigned int CDECL _mbctolower(unsigned int c)
+{
+    return _mbctolower_l(c, NULL);
 }
 
 /*********************************************************************

dlls/msvcrt/msvcrt.spec

@@ -705,7 +705,7 @@
 @ cdecl _mbctokata(long)
 # stub _mbctokata_l(long ptr)
 @ cdecl _mbctolower(long)
-# stub _mbctolower_l(long ptr)
+@ cdecl _mbctolower_l(long ptr)
 @ cdecl _mbctombb(long)
 # stub _mbctombb_l(long ptr)
 @ cdecl _mbctoupper(long)

dlls/ucrtbase/ucrtbase.spec

@@ -603,7 +603,7 @@
 @ cdecl _mbctokata(long)
 @ stub _mbctokata_l
 @ cdecl _mbctolower(long)
-@ stub _mbctolower_l
+@ cdecl _mbctolower_l(long ptr)
 @ cdecl _mbctombb(long)
 @ stub _mbctombb_l
 @ cdecl _mbctoupper(long)