rust/src/test/ui/parser/underscore-suffix-for-string.stderr

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warning: underscore literal suffix is not allowed
--> $DIR/underscore-suffix-for-string.rs:4:18
|
LL | let _ = "Foo"_;
| ^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= note: for more information, see issue #42326 <https://github.com/rust-lang/rust/issues/42326>