fix: named wildcard (_) now correctly matches only named nodes
#267
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Summary
(_)wildcard was matching anonymous nodes (like"return"keyword) when it should only match named nodesNAMED_WILDCARDsentinel value (0xFFFF) to distinguish(_)from_in bytecodeis_named()when matching(_)Why
The docs specify
(_)matches "any named node" while_matches "any node (named or anonymous)". The implementation was treating both as identical wildcards.