Rollup merge of #120958 - ShoyuVanilla:remove-subst, r=oli-obk

Dejargonize `subst`

In favor of #110793, replace almost every occurence of `subst` and `substitution` from rustc codes, but they still remains in subtrees under `src/tools/` like clippy and test codes (I'd like to replace them after this)

compiler/rustc_middle/src/query/mod.rs

@@ -2078,9 +2078,9 @@ rustc_queries! {
         desc { "normalizing `{:?}`", goal.value.value.value }
     }
 
-    query subst_and_check_impossible_predicates(key: (DefId, GenericArgsRef<'tcx>)) -> bool {
+    query instantiate_and_check_impossible_predicates(key: (DefId, GenericArgsRef<'tcx>)) -> bool {
         desc { |tcx|
-            "checking impossible substituted predicates: `{}`",
+            "checking impossible instantiated predicates: `{}`",
             tcx.def_path_str(key.0)
         }
     }