The shared CFG library overrides ControlFlowNode.toString() as 'final'
(shared/controlflow/codeql/controlflow/Cfg.qll:1217), so the legacy
'ControlFlowNode for X' prefix is gone — the new toString returns just
'X' for normal nodes and 'After X' for after-nodes. This produces a
large cosmetic diff in test expected files with no semantic change.
Mass-rebless 78 .expected files whose actual output differs from the
checked-in expected only by this rename. Each file was verified to be
identical after normalising 'ControlFlowNode for ' and 'After ' away
from both sides.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
