Auto merge of #787 - SirVer:00_fix_repetition_operation, r=emilio
Auto merge of #787 - SirVer:00_fix_repetition_operation, r=emilio

Remove Type::detect_has_vtable_cycle.

After some discussion in #765 we do not think anymore that this can ever be true.

emilio/rust-bindgen,emilio/rust-bindgen,rust-lang/rust-bindgen,rust-lang/rust-bindgen,emilio/rust-bindgen,rust-lang/rust-bindgen,emilio/rust-bindgen,rust-lang/rust-bindgen,emilio/rust-bindgen