make test code more clear

runtime/src/accounts_db.rs

@@ -5541,7 +5541,8 @@ impl AccountsDb {
             .fetch_add(recycle_stores_write_elapsed.as_us(), Ordering::Relaxed);
     }
 
-    pub fn flush_accounts_cache_slot(&self, slot: Slot) {
+    #[cfg(test)]
+    pub(crate) fn flush_accounts_cache_slot_for_tests(&self, slot: Slot) {
         self.flush_slot_cache(slot);
     }
 

runtime/src/bank.rs

@@ -6421,11 +6421,11 @@ impl Bank {
     }
 
     #[cfg(test)]
-    pub fn flush_accounts_cache_slot(&self) {
+    pub fn flush_accounts_cache_slot_for_tests(&self) {
         self.rc
             .accounts
             .accounts_db
-            .flush_accounts_cache_slot(self.slot())
+            .flush_accounts_cache_slot_for_tests(self.slot())
     }
 
     pub fn expire_old_recycle_stores(&self) {
@@ -14670,7 +14670,7 @@ pub(crate) mod tests {
         bank1.deposit(&pubkey0, some_lamports).unwrap();
         goto_end_of_slot(Arc::<Bank>::get_mut(&mut bank1).unwrap());
         bank1.freeze();
-        bank1.flush_accounts_cache_slot();
+        bank1.flush_accounts_cache_slot_for_tests();
 
         bank1.print_accounts_stats();