tests/ui/consts/const-index-feature-gate.rs - toolchain/rustc - Git at Google

 //@ run-pass
 #![allow(dead_code)]
 const ARR: [usize; 1] = [2];
 const ARR2: [i32; ARR[0]] = [5, 6];

 fn main() {
 }
	//@ run-pass
	#![allow(dead_code)]
	const ARR: [usize; 1] = [2];
	const ARR2: [i32; ARR[0]] = [5, 6];

	fn main() {
	}