Add 1 new (old?) ICE

Author: workingjubilee

ices/43408.rs

@@ -0,0 +1,7 @@
+#![feature(const_fn)]
+pub const fn sof<T:?Sized>() -> usize {
+    10
+}
+fn to_byte_array<T>() -> [u8; sof::<T>()] {
+     panic!()
+}