* syscalls.cc (seteuid32): On Win95 get the pw entry. If it exists

update the euid and call cygheap->user.set_name. Remove special
	handling of ILLEGAL_UID.
	(setgid32): Add a debug_printf. On Win95, always set the egid.
	Remove special handling of ILLEGAL_GID. Do not compare gid and gr_gid.
	* child_info.h (class cygheap_exec_info): Remove uid.
	* spawn.cc (spawn_guts): Do not set ciresrv.moreinfo->uid.
	* dcrto.cc (dll_crt0_1): Always call uinfo_init.
	* uinfo.cc (uinfo_init): Reorganize and close handle if needed.
	(cygheap_user::ontherange): Do not call internal_getpwnam if pw is NULL.

winsup/cygwin/child_info.h

@@ -71,7 +71,6 @@ class fhandler_base;
 class cygheap_exec_info
 {
 public:
-  __uid32_t uid;
   char *old_title;
   int argc;
   char **argv;