upd: optimize gdbinit script

.gdbinit

@@ -2,21 +2,13 @@ skip peek
 skip consume
 skip next
 skip is
-skip fzl_mknode
+skip -rfunction fzl_mk*
-skip fzl_mktoken
+skip -rfunction fzl_free*
-skip fzl_symt_put
+skip -rfunction fzl_symt*
-skip fzl_symt_get
 skip add_const
 skip push_op
 skip push_word
-skip fzl_mkenv
+skip -rfunction fzl_env*
-skip fzl_freeenv
-skip fzl_env_lookup
-skip fzl_env_contains
-skip fzl_env_storevalue
-skip fzl_env_writevalue
-skip fzl_mkctable
-skip fzl_freectable
 skip tok_to_type
 skip nest_ctx
 skip fin_ctx