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kotlinlang

In the scope of targeting 2.0, I'm trying to remove error suppressions.
In antlr-kotlin I have some INVISIBLE_MEMBER and INVISIBLE_REFERENCE suppressions to access printing to the error stream.

They were <https://github.com/Strumenta/antlr-kotlin/pull/184|easy to remove> in Kotlin/Native as all what's needed is public, and there isn't much work to do overall.
However, I'm not sure for WASI. Should I just copy
```internal fun printError(error: String?) {
    printImpl(error, useErrorStream = true, newLine = false)
}```
And all what's inside like `wasiPrintImpl` and `wasiRawFdWrite`? Even `WasiError` is internal.

Well, we do not recommend use internal API in your program. If you need just error printing there is not much code so you can just copy it.