BinExport2: better expression pruning #6816

Job	Run time
changelog_format	3s
code_style	1m 26s
rule_linter	1m 10s
Tests in 3.10 on ubuntu-20.04	4m 44s
Tests in 3.11 on ubuntu-20.04	4m 13s
Tests in 3.10 on windows-2019	7m 45s
Tests in 3.11 on windows-2019	5m 43s
Tests in 3.10 on macos-13	6m 35s
Tests in 3.11 on macos-13	7m 59s
Tests in 3.12 on ubuntu-20.04	4m 26s
Ghidra tests for ${{ matrix.python-version }}	0s
Binary Ninja tests for ${{ matrix.python-version }}	0s
	44m 4s

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