* sysdeps/unix/dirstream.h (struct __dirstream): Move lock member

* sysdeps/unix/dirstream.h (struct __dirstream): Move lock member

	to fill a hole on 64-bit platforms.

	* stdlib/stdlib.h: Remove __strto*_internal prototypes and strto*
	inline functions.
	* include/stdlib.h: Add __strto*_internal prototypes here.
	* wcsmbs/wchar.h: Remove __wcsto*_internal prototypes and wcsto*
	inline functions.
	* include/wchar.h: Add __wcsto*_internal prototypes.
	* sysdeps/generic/inttypes.h: No need to protect the declaration
	of the __strto*_internal and __wcsto*_internal members here.