remove outdated comment

RalfJung · RalfJung · commit 35f74c24a3c2 · 2021-09-29T13:43:22.000-04:00
diff --git a/compiler/rustc_const_eval/src/interpret/step.rs b/compiler/rustc_const_eval/src/interpret/step.rs
@@ -253,7 +253,6 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> {
             }
 
             Len(place) => {
-                // FIXME(CTFE): don't allow computing the length of arrays in const eval
                 let src = self.eval_place(place)?;
                 let mplace = self.force_allocation(&src)?;
                 let len = mplace.len(self)?;

Original file line number	Diff line number	Diff line change
`@@ -253,7 +253,6 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> {`
`253`	`253`	`}`
`254`	`254`
`255`	`255`	`Len(place) => {`
`256`		`- // FIXME(CTFE): don't allow computing the length of arrays in const eval`
`257`	`256`	`let src = self.eval_place(place)?;`
`258`	`257`	`let mplace = self.force_allocation(&src)?;`
`259`	`258`	`let len = mplace.len(self)?;`