fix cranelift

Author: oli-obk

compiler/rustc_codegen_cranelift/src/abi/mod.rs

@@ -399,7 +399,7 @@ pub(crate) fn codegen_terminator_call<'tcx>(
                     // Unimplemented intrinsics must have a fallback body. The fallback body is obtained
                     // by converting the `InstanceDef::Intrinsic` to an `InstanceDef::Item`.
                     Err(()) => {
-                        assert!(!fcx.tcx.intrinsic(instance.def_id()).unwrap().must_be_overridden);
+                        assert!(!fx.tcx.intrinsic(instance.def_id()).unwrap().must_be_overridden);
                         Some(Instance::new(instance.def_id(), instance.args))
                     }
                 }