Add regression test for #60674.
This commit adds a regression test (with current broken behaviour) that tests that `mut` patterns are not lost when provided as input to a proc macro.
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src/test/ui/async-await/auxiliary/issue-60674.rs
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src/test/ui/async-await/auxiliary/issue-60674.rs
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// force-host
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// no-prefer-dynamic
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#![crate_type = "proc-macro"]
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extern crate proc_macro;
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use proc_macro::TokenStream;
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#[proc_macro_attribute]
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pub fn attr(_args: TokenStream, input: TokenStream) -> TokenStream {
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println!("{}", input);
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TokenStream::new()
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}
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src/test/ui/async-await/issue-60674.rs
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src/test/ui/async-await/issue-60674.rs
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// aux-build:issue-60674.rs
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// compile-pass
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// edition:2018
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#![feature(async_await)]
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// This is a regression test that ensures that `mut` patterns are not lost when provided as input
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// to a proc macro.
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extern crate issue_60674;
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#[issue_60674::attr]
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async fn f(mut x: u8) {}
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fn main() {}
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src/test/ui/async-await/issue-60674.stdout
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src/test/ui/async-await/issue-60674.stdout
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async fn f(x: u8) { }
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