Move class name to metatable[ '.classname']

So that class instance will also have access to its classname.

eg.

print(cc.Node['.classname'])
print(node['.classname'])

Author: xpol

lua/tolua/tolua_map.c

@@ -39,6 +39,12 @@ static int tolua_newmetatable (lua_State* L, const char* name)
 
     if (r)
         tolua_classevents(L); /* set meta events */
+    
+    // metatable[".classname"] = name
+    lua_pushliteral(L, ".classname");   // stack: metatable ".classname"
+    lua_pushstring(L, name);            // stack: metatable ".classname" name
+    lua_rawset(L, -3);                  // stack: metatable
+    
     lua_pop(L,1);
     return r;
 }
@@ -661,10 +667,6 @@ TOLUA_API void tolua_cclass (lua_State* L, const char* lname, const char* name,
     lua_newtable(L);                    // stack: module lname table
     luaL_getmetatable(L,name);          // stack: module lname table mt
     lua_setmetatable(L, -2);            // stack: module lname table
-    // class_table[".name"] = name
-    lua_pushliteral(L, ".name");        // stack: module lname table ".name"
-    lua_pushstring(L, name);            // stack: module lname table ".name" name
-    lua_rawset(L, -3);                  // stack: module lname table
     //Use a key named ".isclass" to be a flag of class_table
     lua_pushliteral(L, ".isclass");
     lua_pushboolean(L, 1);