Rename the FIXMEs, remove a few that dont matter anymore

compiler/rustc_const_eval/src/check_consts/check.rs

@@ -657,7 +657,8 @@ impl<'tcx> Visitor<'tcx> for Checker<'_, 'tcx> {
                     // typeck ensures the conditions for calling a const trait method are met,
                     // so we only error if the trait isn't const. We try to resolve the trait
                     // into the concrete method, and uses that for const stability checks.
-                    // FIXME(effects) we might consider moving const stability checks to typeck as well.
+                    // FIXME(const_trait_impl) we might consider moving const stability checks
+                    // to typeck as well.
                     if tcx.features().const_trait_impl() && trait_is_const {
                         // This skips the check below that ensures we only call `const fn`.
                         is_trait = true;

compiler/rustc_const_eval/src/check_consts/ops.rs

@@ -120,7 +120,7 @@ impl<'tcx> NonConstOp<'tcx> for FnCallNonConst<'tcx> {
                     let implsrc = selcx.select(&obligation);
 
                     if let Ok(Some(ImplSource::UserDefined(data))) = implsrc {
-                        // FIXME(effects) revisit this
+                        // FIXME(const_trait_impl) revisit this
                         if !tcx.is_const_trait_impl(data.impl_def_id) {
                             let span = tcx.def_span(data.impl_def_id);
                             err.subdiagnostic(errors::NonConstImplNote { span });

compiler/rustc_const_eval/src/check_consts/qualifs.rs

@@ -192,7 +192,7 @@ impl Qualif for NeedsNonConstDrop {
             return false;
         }
 
-        // FIXME(effects): Reimplement const drop checking.
+        // FIXME(const_trait_impl): Reimplement const drop checking.
         NeedsDrop::in_any_value_of_ty(cx, ty)
     }