wasm: temporarily save curr file pointer before pwriting on Win
This is a temporary workaround to an unclear platform-dependence
behavior we have in libstd for `std.fs.File` abstraction. See
https://github.com/ziglang/zig/issues/12783 for more information.
0ae2ea671bJakub Konka committed on 9/8/2022, 12:29:54 PMparentb98b325