Allow unused imports in the generator.

Author: huonw

src/etc/platform-intrinsics/generator.py

@@ -436,6 +436,8 @@ def open(self, platform):
 // DO NOT EDIT: autogenerated by etc/platform-intrinsics/generator.py
 // ignore-tidy-linelength
 
+#![allow(unused_imports)]
+
 use {{Intrinsic, i, u, f, v, agg}};
 use IntrinsicDef::Named;
 use rustc::middle::ty;

src/librustc_platform_intrinsics/aarch64.rs

@@ -11,6 +11,8 @@
 // DO NOT EDIT: autogenerated by etc/platform-intrinsics/generator.py
 // ignore-tidy-linelength
 
+#![allow(unused_imports)]
+
 use {Intrinsic, i, u, f, v, agg};
 use IntrinsicDef::Named;
 use rustc::middle::ty;

src/librustc_platform_intrinsics/arm.rs

@@ -11,6 +11,8 @@
 // DO NOT EDIT: autogenerated by etc/platform-intrinsics/generator.py
 // ignore-tidy-linelength
 
+#![allow(unused_imports)]
+
 use {Intrinsic, i, u, f, v, agg};
 use IntrinsicDef::Named;
 use rustc::middle::ty;