Changes proposed in this pull request:
⯈ Exposes the binaryen instance used by transforms as Transform#binaryen
⯈ Fixes the .d.ts type for Transform#afterCompile
[x] I've read the contributing guidelines
[x] I've added my name and email to the NOTICE file
Fixes #2829
Changes proposed in this pull request: ⯈ Exposes the binaryen instance used by transforms as
Transform#binaryen⯈ Fixes the.d.tstype forTransform#afterCompile