Ignore unused_parens warning on the proc macro workaround

test_suite/no_std/src/main.rs

@@ -10,6 +10,7 @@
 #![no_std]
 
 // https://github.com/rust-lang/rust/issues/47311
+#![allow(unused_parens)]
 #![cfg_attr(feature = "cargo-clippy", allow(double_parens))]
 
 extern crate libc;

test_suite/tests/test_annotations.rs

@@ -9,6 +9,7 @@
 #![cfg_attr(feature = "cargo-clippy", allow(cast_lossless))]
 
 // https://github.com/rust-lang/rust/issues/47311
+#![allow(unused_parens)]
 #![cfg_attr(feature = "cargo-clippy", allow(double_parens))]
 
 #[macro_use]

test_suite/tests/test_de.rs

@@ -7,6 +7,7 @@
 // except according to those terms.
 
 // https://github.com/rust-lang/rust/issues/47311
+#![allow(unused_parens)]
 #![cfg_attr(feature = "cargo-clippy", allow(double_parens))]
 
 #[macro_use]

test_suite/tests/test_gen.rs

@@ -14,6 +14,7 @@
 #![cfg_attr(feature = "unstable", feature(non_ascii_idents))]
 
 // https://github.com/rust-lang/rust/issues/47311
+#![allow(unused_parens)]
 #![cfg_attr(feature = "cargo-clippy", allow(double_parens))]
 
 #[macro_use]

test_suite/tests/test_macros.rs

@@ -9,6 +9,7 @@
 #![deny(trivial_numeric_casts)]
 
 // https://github.com/rust-lang/rust/issues/47311
+#![allow(unused_parens)]
 #![cfg_attr(feature = "cargo-clippy", allow(double_parens))]
 
 #[macro_use]

test_suite/tests/test_remote.rs

@@ -7,6 +7,7 @@
 // except according to those terms.
 
 // https://github.com/rust-lang/rust/issues/47311
+#![allow(unused_parens)]
 #![cfg_attr(feature = "cargo-clippy", allow(double_parens))]
 
 #[macro_use]