Cannot turn on enable_intermediate_aggregation on query that contains reduce_agg

[hellium01]

AddIntermediateAggregations assumed there is no lambda argument in the Aggregation function in FINAL step, thus it will always fail. Reproduce by running following query:

set session enable_intermediate_aggregations=true;
SELECT reduce_agg(y, 1, (a, b) -> a * b, (a, b) -> a * b) 
                        FROM (VALUES (1, 5), (1, 6), (1, 7), (2, 8), (2, 9), (3, 10)) AS t(x, y) ;

throws

java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
        at com.facebook.presto.operator.aggregation.GenericAccumulatorFactory.createIntermediateAccumulator(GenericAccumulatorFactory.java:148)
        at com.facebook.presto.operator.Aggregator.<init>(Aggregator.java:40)
        at com.facebook.presto.operator.AggregationOperator.<init>(AggregationOperator.java:106)
        at com.facebook.presto.operator.AggregationOperator$AggregationOperatorFactory.createOperator(AggregationOperator.java:62)
        at com.facebook.presto.operator.DriverFactory.createDriver(DriverFactory.java:114)
        at com.facebook.presto.execution.SqlTaskExecution$DriverSplitRunnerFactory.createDriver(SqlTaskExecution.java:943)
        at com.facebook.presto.execution.SqlTaskExecution$DriverSplitRunner.processFor(SqlTaskExecution.java:1071)
        at com.facebook.presto.execution.executor.PrioritizedSplitRunner.process(PrioritizedSplitRunner.java:162)
        at com.facebook.presto.execution.executor.TaskExecutor$TaskRunner.run(TaskExecutor.java:483)
        at com.facebook.presto.$gen.Presto_0_219____20190507_234305_1.run(Unknown Source)
        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1135)
        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
        at java.base/java.lang.Thread.run(Thread.java:844)
Caused by: java.lang.reflect.InvocationTargetException
        at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
        at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:488)
        at com.facebook.presto.operator.aggregation.GenericAccumulatorFactory.createIntermediateAccumulator(GenericAccumulatorFactory.java:145)
        ... 12 more
Caused by: java.lang.ArrayIndexOutOfBoundsException: 0
        at com.google.common.collect.RegularImmutableList.get(RegularImmutableList.java:60)
        at com.facebook.presto.$gen.IntegerIntegerReduceAggAccumulator_20190522_004310_6843883.<init>(Unknown Source)
        ... 17 more

[hellium01]

cc @wenleix, @highker