Rollup merge of #127045 - compiler-errors:explicit, r=oli-obk

Rename `super_predicates_of` and similar queries to `explicit_*` to note that they're not elaborated

Rename:
* `super_predicates_of` -> `explicit_super_predicates_of`
* `implied_predicates_of` -> `explicit_implied_predicates_of`
* `supertraits_containing_assoc_item` -> `explicit_supertraits_containing_assoc_item`

This makes it clearer that, unlike (for example) [`TyCtxt::super_traits_of`](https://doc.rust-lang.org/nightly/nightly-rustc/rustc_middle/ty/context/struct.TyCtxt.html#method.super_traits_of), we don't automatically elaborate this set of predicates.

r? ``@lcnr`` or ``@oli-obk`` or someone from t-types idc

compiler/rustc_lint/src/multiple_supertrait_upcastable.rs

@@ -45,7 +45,7 @@ impl<'tcx> LateLintPass<'tcx> for MultipleSupertraitUpcastable {
         {
             let direct_super_traits_iter = cx
                 .tcx
-                .super_predicates_of(def_id)
+                .explicit_super_predicates_of(def_id)
                 .predicates
                 .into_iter()
                 .filter_map(|(pred, _)| pred.as_trait_clause());