[wasm] Fallback to emulated realpath on wasi-libc realpath ENOTSUP
#13124
+6
−2
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wasi-libc 22 and later support realpath(3) (WebAssembly/wasi-libc#463) but the underlying host syscall may return ENOTSUP. This is typically the case when using incomplete WASI polyfills on web browsers. For such cases, we should fallback to the emulated realpath.