expr: fix eager evaluation of parenthesized dead branches #11395

Performance Gate Passed

✅ 298 untouched benchmarks
⏩ 48 skipped benchmarks¹

_{Comparing can1357:expr-fix-eager-evaluation-of-parenthesized-dead-branches (5819325) with main (209bb97)}

48 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩