wasm2js: Do not convert x >>> 0 | 0 to x >>> 0 (#2581)

isBinary was used where we should only accept
a signed binary, as removing the | 0 from an unsigned
value may be incorrect.

This does regress a few small things (as can be seen
in the diff). If it's important we can add more sophisticated
optimizations here, perhaps like an assumption that the
signedness of a local never matters.

Fixes emscripten-core/emscripten#10173

0 files changed, 0 insertions, 0 deletions