Alex Lam S.L 6c45101870 consolidate & enhance unused (#2439) ...

- defer declaration removal in `collapse_vars`
- account for `AST_SymbolFunarg` in deduplication
- private accounting for `collapse_vars`
- avoid issues with identity reference due to deep cloning

fixes #2437

2017-11-06 14:25:10 +08:00

1.8 KiB

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