Rename createNewTranslog to fileBasedRecovery (#31508)

We renamed `createNewTranslog` to `fileBasedRecovery` in the
RecoveryTarget but did not do this for RecoverySourceHandler.
This commit makes sure that we a consistent parameter in both
recovery source and target.

Author: dnhatn

server/src/main/java/org/elasticsearch/indices/recovery/RecoverySourceHandler.java

@@ -449,13 +449,13 @@ public void phase1(final IndexCommit snapshot, final Supplier<Integer> translogO
         }
     }
 
-    void prepareTargetForTranslog(final boolean createNewTranslog, final int totalTranslogOps) throws IOException {
+    void prepareTargetForTranslog(final boolean fileBasedRecovery, final int totalTranslogOps) throws IOException {
         StopWatch stopWatch = new StopWatch().start();
         logger.trace("recovery [phase1]: prepare remote engine for translog");
         final long startEngineStart = stopWatch.totalTime().millis();
         // Send a request preparing the new shard's translog to receive operations. This ensures the shard engine is started and disables
         // garbage collection (not the JVM's GC!) of tombstone deletes.
-        cancellableThreads.executeIO(() -> recoveryTarget.prepareForTranslogOperations(createNewTranslog, totalTranslogOps));
+        cancellableThreads.executeIO(() -> recoveryTarget.prepareForTranslogOperations(fileBasedRecovery, totalTranslogOps));
         stopWatch.stop();
 
         response.startTime = stopWatch.totalTime().millis() - startEngineStart;

server/src/test/java/org/elasticsearch/indices/recovery/RecoverySourceHandlerTests.java

@@ -423,7 +423,7 @@ public void phase1(final IndexCommit snapshot, final Supplier<Integer> translogO
             }
 
             @Override
-            void prepareTargetForTranslog(final boolean createNewTranslog, final int totalTranslogOps) throws IOException {
+            void prepareTargetForTranslog(final boolean fileBasedRecovery, final int totalTranslogOps) throws IOException {
                 prepareTargetForTranslogCalled.set(true);
             }