Change WASI's `RawFd` from `u32` to `c_int` (`i32`).#88012

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sunfishcode:sunfishcode/wasi-raw-fd-c-int

Aug 19, 2021

Commits on Aug 13, 2021

Change WASI's `RawFd` from `u32` to `c_int` (`i32`).
sunfishcode
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