Remove getters for narrow integral types from LongArrayBlock

[raunaqmorarka]

Description

Originally added as a temporary workaround, but unused now

Additional context and related issues

Related to prestodb/presto#5674

Release notes

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[dain]

Interesting, I have most of this in the #19385 as that code needs code to produce the correct block types.

[raunaqmorarka]

Interesting, I have most of this in the #19385 as that code needs code to produce the correct block types.

I basically got stuck here because io.trino.plugin.hive.coercions.IntegerNumberUpscaleCoercer is actually relying on these methods and I wasn't sure how to avoid that.
Does it make sense to land the rest of the changes to avoid relying on these methods in the other places ?

[dain]

I ended up rewriting a bunch of stuff like that. I have a branch (stuck behind another PR) that remove all of the get methods from the Block interface. With the addition of ValueBlocks and the guarantee that if you can down cast a ValueBlock to the declared type in Type.getValueBlockType, we don't need the interface methods anymore. This is all setup so we can add more types likebyte, short, int, float, and double, and generally simplifies most code (some places got more complex. These changes will let us support all of these types directly in functions without using long everywhere.

Anyway, I'd prefer to wait for my branch these changes will conflict with me.

[dain]

BTW here is my PR that removes all of the getters. #19577