Add name field to registered entities

data/mods/default/init.lua

@@ -239,6 +239,7 @@
 --
 -- Registered entities:
 -- - Functions receive a "luaentity" as self:
+--   - It has the member .name, which is the registered name ("mod:thing")
 --   - It has the member .object, which is an ObjectRef pointing to the object
 --   - The original prototype stuff is visible directly via a metatable
 -- - Callbacks:

src/scriptapi.cpp

@@ -2652,6 +2652,10 @@ static int l_register_entity(lua_State *L)
 	
 	// Get registered object to top of stack
 	lua_pushvalue(L, 2);
+
+	// Set name field
+	lua_pushvalue(L, 1);
+	lua_setfield(L, -2, "name");
 	
 	// Set __index to point to itself
 	lua_pushvalue(L, -1);