Use TypingEnv::fully_monomorphized for evaluating const without generic param path

Author: tiif

compiler/rustc_trait_selection/src/traits/mod.rs

@@ -637,7 +637,7 @@ pub fn try_evaluate_const<'tcx>(
 
                     // Since there is no generic parameter, we can just drop the environment
                     // to prevent query cycle.
-                    let typing_env = infcx.typing_env(ty::ParamEnv::empty());
+                    let typing_env = ty::TypingEnv::fully_monomorphized();
 
                     (uv.args, typing_env)
                 }