Fix minor nits in new electra state changes (Consensys#8194)

Co-authored-by: Paul Harris <[email protected]>

Author: jtraglia

Diff for: data/serializer/src/main/java/tech/pegasys/teku/api/schema/electra/PendingConsolidation.java

@@ -47,7 +47,7 @@ public PendingConsolidation(
         spec.getSchemaDefinitions().toVersionElectra();
     if (schemaDefinitionsElectra.isEmpty()) {
       throw new IllegalArgumentException(
-          "Could not create PendingBalanceDeposit for pre-electra spec");
+          "Could not create PendingConsolidation for pre-electra spec");
     }
     return schemaDefinitionsElectra
         .get()

Diff for: data/serializer/src/main/java/tech/pegasys/teku/api/schema/electra/PendingPartialWithdrawal.java

@@ -53,7 +53,7 @@ public PendingPartialWithdrawal(
         spec.getSchemaDefinitions().toVersionElectra();
     if (schemaDefinitionsElectra.isEmpty()) {
       throw new IllegalArgumentException(
-          "Could not create PendingBalanceDeposit for pre-electra spec");
+          "Could not create PendingPartialWithdrawal for pre-electra spec");
     }
     return schemaDefinitionsElectra
         .get()

Diff for: ethereum/spec/src/main/java/tech/pegasys/teku/spec/datastructures/state/beaconstate/common/BeaconStateFields.java

@@ -71,7 +71,6 @@ public enum BeaconStateFields implements SszFieldName {
   HISTORICAL_SUMMARIES,
   // Electra fields
   DEPOSIT_RECEIPTS_START_INDEX,
-
   DEPOSIT_BALANCE_TO_CONSUME,
   EXIT_BALANCE_TO_CONSUME,
   EARLIEST_EXIT_EPOCH,

Diff for: ethereum/spec/src/main/java/tech/pegasys/teku/spec/datastructures/state/beaconstate/versions/electra/MutableBeaconStateElectra.java

@@ -37,17 +37,17 @@ static MutableBeaconStateElectra required(final MutableBeaconState state) {
   @Override
   BeaconStateElectra commitChanges();
 
+  @Override
+  default Optional<MutableBeaconStateElectra> toMutableVersionElectra() {
+    return Optional.of(this);
+  }
+
   default void setDepositReceiptsStartIndex(final UInt64 depositReceiptsStartIndex) {
     final int fieldIndex =
         getSchema().getFieldIndex(BeaconStateFields.DEPOSIT_RECEIPTS_START_INDEX);
     set(fieldIndex, SszUInt64.of(depositReceiptsStartIndex));
   }
 
-  @Override
-  default Optional<MutableBeaconStateElectra> toMutableVersionElectra() {
-    return Optional.of(this);
-  }
-
   default void setDepositBalanceToConsume(final UInt64 depositBalanceToConsume) {
     final int fieldIndex = getSchema().getFieldIndex(BeaconStateFields.DEPOSIT_BALANCE_TO_CONSUME);
     set(fieldIndex, SszUInt64.of(depositBalanceToConsume));