Rollup merge of #152003 - 9SonSteroids:trait_info_of, r=oli-obk

Reflection TypeId::trait_info_of

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This is for rust-lang/rust#146922.

As rust-lang/rust#151236 was requested to be remade by someone I implemented the functionality as `TypeId::trait_info_of` which additionally allows getting the vtable pointer to build `dyn` Objects in recursive reflection.

It allows checking if a TypeId implements a trait. Since this is my first PR feel free to tell me if there are any formal issues.

Author: JonathanBrouwer