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039e9b6b94
Pretty print lifetimes captured by RPIT This specifically makes the output in #103409 change from: ```diff error: `impl` item signature doesn't match `trait` item signature --> $DIR/signature-mismatch.rs:15:5 | LL | fn async_fn(&self, buff: &[u8]) -> impl Future<Output = Vec<u8>>; | ----------------------------------------------------------------- expected `fn(&'1 Struct, &'2 [u8]) -> impl Future<Output = Vec<u8>>` ... LL | fn async_fn<'a>(&self, buff: &'a [u8]) -> impl Future<Output = Vec<u8>> + 'a { - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ found `fn(&'1 Struct, &'2 [u8]) -> impl Future<Output = Vec<u8>>` + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ found `fn(&'1 Struct, &'2 [u8]) -> impl Future<Output = Vec<u8>> + '2` | = note: expected `fn(&'1 Struct, &'2 [u8]) -> impl Future<Output = Vec<u8>>` - found `fn(&'1 Struct, &'2 [u8]) -> impl Future<Output = Vec<u8>>` + found `fn(&'1 Struct, &'2 [u8]) -> impl Future<Output = Vec<u8>> + '2` = help: the lifetime requirements from the `impl` do not correspond to the requirements in the `trait` = help: verify the lifetime relationships in the `trait` and `impl` between the `self` argument, the other inputs and its output error: aborting due to previous error ``` Along with the UI tests in this PR, which I think are all improvements! r? `@oli-obk` though feel free to re-roll |
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