Rollup merge of #133938 - nnethercote:rustc_mir_dataflow-renamings, r=oli-obk

`rustc_mir_dataflow` cleanups, including some renamings

Some opinionated commits in this collection, let's see how we go.

r? `@cjgillot`

compiler/rustc_const_eval/src/check_consts/resolver.rs

@@ -329,7 +329,7 @@ where
         self.transfer_function(state).initialize_state();
     }
 
-    fn apply_statement_effect(
+    fn apply_primary_statement_effect(
         &mut self,
         state: &mut Self::Domain,
         statement: &mir::Statement<'tcx>,
@@ -338,7 +338,7 @@ where
         self.transfer_function(state).visit_statement(statement, location);
     }
 
-    fn apply_terminator_effect<'mir>(
+    fn apply_primary_terminator_effect<'mir>(
         &mut self,
         state: &mut Self::Domain,
         terminator: &'mir mir::Terminator<'tcx>,