don't visit any nested bodies in is_const_evaluatable

Author: y21

clippy_utils/src/visitors.rs

@@ -316,10 +316,7 @@ pub fn is_const_evaluatable<'tcx>(cx: &LateContext<'tcx>, e: &'tcx Expr<'_>) ->
         is_const: bool,
     }
     impl<'tcx> Visitor<'tcx> for V<'_, 'tcx> {
-        type NestedFilter = nested_filter::OnlyBodies;
-        fn nested_visit_map(&mut self) -> Self::Map {
-            self.cx.tcx.hir()
-        }
+        type NestedFilter = rustc_hir::intravisit::nested_filter::None;
 
         fn visit_expr(&mut self, e: &'tcx Expr<'_>) {
             if !self.is_const {

tests/ui/crashes/ice-11939.rs

@@ -0,0 +1,14 @@
+#![allow(clippy::unit_arg, clippy::no_effect)]
+
+const fn v(_: ()) {}
+
+fn main() {
+    if true {
+        v({
+            [0; 1 + 1];
+        });
+        Some(())
+    } else {
+        None
+    };
+}