resolve `use index` / `ignore index` and `use_index()` / `ignore_index()` when building `ID` of bindings

[eurekaka]

Development Task

For these bind_sqls:

• select * from t use index(idx) where a > 1
• select /*+ use_index(@sel_1 t, idx) */ from t where a > 1

they are same actually but they have different ID now.

For these bind_sqls:

• select * from t ignore index(idx) where a > 1
• select /*+ use_index(@sel_1 t, idx) */ from t where a > 1

they are same actually but they have different ID now.

Resolve them to avoid potential duplicate bindings in mysql.bind_info.