rust/src/test/rustdoc-ui/error-in-impl-trait/impl-keyword-closure.rs

pub trait ValidTrait {}
/// This returns impl trait
pub fn g() -> impl ValidTrait {
    (|| error::_in::impl_trait::alias::nested::closure())()
    //~^ ERROR failed to resolve
}
Recurse into function bodies, but don't typeck closures Previously, rustdoc would issue a delay_span_bug ICE on the following code: ```rust pub fn a() -> impl Fn() -> u32 { \|\| content::doesnt::matter() } ``` This wasn't picked up earlier because having `type Alias = impl Trait;` in the same module caused _all closures_ to be typechecked, even if they wouldn't normally. Additionally, if _any_ error was emitted, no delay_span_bug would be emitted. So as part of this commit all of the tests were separated out into different files. 2020-07-09 09:13:59 -04:00			`pub trait ValidTrait {}`
			`/// This returns impl trait`
			`pub fn g() -> impl ValidTrait {`
			`(\|\| error::_in::impl_trait::alias::nested::closure())()`
			`//~^ ERROR failed to resolve`
			`}`