__aliasMarker refactoring to cover complex cases with ALIASes#1463

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filimonov wants to merge 2 commits intoantalya-26.1from

feature/antalya-26.1/better_ensure_alias2

Commits on Mar 11, 2026

Analyzer: fix __aliasMarker, covering complex cases.
filimonov
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add test case from https://github.com/Altinity/ClickHouse/issues/1335
filimonov
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