lua LCD (Lua Compact Debug) patch

LCD developed 9/2015 by Terry Ellison

 We've already discarded the ldebug module from lua
 it only makes sense to discard the debug info as well
 adds 1.5 K to the binary
 saves 8 Kb on the base state
 once scripts start getting called i've seen 10-50Kb savings but it all depends on
 what exactly you are running

Change-Id: Ibb74f344df1c4c96380ec6c98b010a810e9ae9cc

apps/plugins/lua/lparser.h

@@ -72,6 +72,11 @@ typedef struct FuncState {
   lu_byte nactvar;  /* number of active local variables */
   upvaldesc upvalues[LUAI_MAXUPVALUES];  /* upvalues */
   unsigned short actvar[LUAI_MAXVARS];  /* declared-variable stack */
+#ifdef LUA_OPTIMIZE_DEBUG
+  int lastline;           /* only used during compilation for line info */
+  int lastlineOffset;     /* ditto */
+  int lineinfoLastPC;     /* ditto */
+#endif
 } FuncState;