rust/src/test/ui/symbol-names/basic.rs

// build-fail
// revisions: legacy v0
//[legacy]compile-flags: -Z symbol-mangling-version=legacy
    //[v0]compile-flags: -Z symbol-mangling-version=v0

#![feature(rustc_attrs)]

#[rustc_symbol_name]
//[legacy]~^ ERROR symbol-name(_ZN5basic4main
//[legacy]~| ERROR demangling(basic::main
//[legacy]~| ERROR demangling-alt(basic::main)
 //[v0]~^^^^ ERROR symbol-name(_RNvCs21hi0yVfW1J_5basic4main)
    //[v0]~| ERROR demangling(basic[17891616a171812d]::main)
    //[v0]~| ERROR demangling-alt(basic::main)
#[rustc_def_path]
//[legacy]~^ ERROR def-path(main)
   //[v0]~^^ ERROR def-path(main)
fn main() {
}