new GC state to sweep 'localgc' list + small changes in sweep control

ltests.c

@@ -1,5 +1,5 @@
 /*
-** $Id: ltests.c,v 2.150 2013/08/27 18:53:35 roberto Exp roberto $
+** $Id: ltests.c,v 2.151 2013/08/27 20:04:00 roberto Exp roberto $
 ** Internal Module for Debugging of the Lua Implementation
 ** See Copyright Notice in lua.h
 */
@@ -653,7 +653,8 @@ static int gc_local (lua_State *L) {
 
 static int gc_state (lua_State *L) {
   static const char *statenames[] = {"propagate", "atomic",
-    "sweepudata", "sweep", "pause", ""};
+    "sweeplocal", "sweepfin", "sweepall", "sweepmainth",
+    "pause", ""};
   int option = luaL_checkoption(L, 1, "", statenames);
   if (option == GCSpause + 1) {
     lua_pushstring(L, statenames[G(L)->gcstate]);