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compiler: apply clippy::clone_on_ref_ptr for CI Apply lint https://rust-lang.github.io/rust-clippy/master/index.html#/clone_on_ref_ptr for compiler, also see https://github.com/rust-lang/rust/pull/131225#discussion_r1790109443. Some Arc's can be misplaced with Lrc's, sorry. https://rust-lang.zulipchat.com/#narrow/channel/131828-t-compiler/topic/enable.20more.20clippy.20lints.20for.20compiler.20.28and.5Cor.20std.29
Please read the rustc-dev-guide chapter on Backend Agnostic Codegen.