Reuse checked match selection for generic constant subjects and explicit match $(). Preserve owned captures, runtime scope and control transfers; keep ordinary calls, mutable subjects and potential runtime defaults unprobed. Update README and TODO checkpoint boundaries.
Verified: bro build; bro test (250 passed); python3 tests/native.py (555 interpreter/native comparisons at -O0/-O2, allocator, LLVM and CLI checks); direct interpreter/native constant-match smoke (42).
hl-valdemar
c3e10b3bed