* pinfo.cc (EnumProcessesNT): New function. Eliminates dependence on psapi.h.

(EnumProcesses9x): Rename from EnumProcessesW95.  Change arguments to be more
useful for cygwin.
(winpids::init): Accomodate argument changes.
(enum_init): Ditto.
* pinfo.h (winpids): Make pidlist dynamically extendable by storing it as a
pointer and remembering the size.
* ntdll.h: Add extra definitions needed for EnumProcessesNT.  Reformat via
'indent'.

winsup/cygwin/pinfo.h

@@ -186,12 +186,13 @@ public:
 
 class winpids
 {
-  DWORD pidlist[16384];
+  DWORD *pidlist;
+  DWORD npidlist;
 public:
   DWORD npids;
   void reset () { npids = 0; }
   winpids (int) { reset (); }
-  winpids () { init (); };
+  winpids (): pidlist (NULL), npidlist (0) { init (); };
   void init ();
   int operator [] (int i) const {return pidlist[i];}
 };