Lunatic: build fix on Windows and translator fix with 32-bit archs?

erratum in r2844 commit message:
ydim vs. bytesperline --> xdim vs. bytesperline

git-svn-id: https://svn.eduke32.com/eduke32@2849 1a8010ca-5511-0410-912e-c29ae57300e0

polymer/eduke32/source/lunatic/dynsymlist

@@ -38,7 +38,8 @@ actor;
 ud;
 g_player;
 
-luaJIT_BC_*;
+luaJIT_BC_lunacon;
+luaJIT_BC_con_lang;
 
 gethitickms;
 };

polymer/eduke32/source/lunatic/lunacon.lua

@@ -129,7 +129,7 @@ local function parse_number(pos, numstr)
         num = NaN
     elseif (num >= 0x80000000 and numstr:sub(1,2):lower()~="0x") then
         pwarnprintf(pos, "number %s converted to a negative one", numstr)
-        num = num-0x100000000
+        num = num-(0xffffffff+1)
     end
 
     return num

polymer/eduke32/source/lunatic/test.elua

@@ -204,6 +204,7 @@ gameevent(gv.EVENT_ENTERLEVEL,
               t = gv.gethitickms()-t
 
               -- x86_64: 40ns/call, x86: 290 ns/call
+              -- Windows 32-bit: about 1 us/call
               printf("%d gethitickms() calls took %.03f ms (%.03f us/call)",
                      N, t, (t*1000)/N)