The current implementation does not take into account definitions
created by arguments of nested blocks. This leads to an incorrect
construction of the live-in set of an outer block. Arguments of nested
blocks are added to the live-in set of an outer block.
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Signed-off-by: ikulagin <i.kulagin@ispras.ru>
Co-authored-by: ikulagin <i.kulagin@ispras.ru>