// build-pass #![feature(lang_items,no_core)] #![no_core] #![crate_type="lib"] #[lang = "sized"] trait MySized {} #[lang = "copy"] trait MyCopy {} #[lang = "drop"] trait MyDrop {} struct S; impl MyDrop for S {} #[lang = "i32"] impl<'a> i32 { fn foo() {} } fn bar() { i32::foo(); S; }