Retain bigint/directive values, assignment operators, fixed public keys and
execution-affecting syntax flags in v3. Preserve local/private binding renames
and isolate structural matching by algorithm version. Remove the redundant
test grouping and document structural matching as heuristic evidence.
Validated AST, worker admission, archived-version matching, reconstruction and
public CLI comparisons. Auto-accessors are tested at the AST boundary because
the production JavaScript parser does not enable their Babel plugin.
Refs #3952, #4020.
Co-authored-by: ShitK <1724059440@qq.com>
perf(javascript): avoid quadratic temporary matching state
Repeated source groups can allocate candidates that later identity matches
discard. Retain the original ambiguous groups until all tiers finish, expand
only unmatched survivors, and append to locally owned key buckets in place.
Constraint: Preserve matching priority, full ambiguity, and public output.
Directive: Do not re-match residual groups that become unique after later tiers.
Tested: 59 relevant tests, npm run check, and test discovery on current main.
Tested: CLI benchmarks and full-suite failure comparison on the recorded base.
Not-tested: Full suite on the updated main; native Linux and Windows workflows.
morluto