Method from_string_encoding

modules/llrt_buffer/src/buffer.rs:87–99

(
        ctx: &Ctx<'js>,
        string: String,
        encoding: Option<String>,
    )

    fn from_array_buffer_offset_length(
        ctx: &Ctx<'js>,
        array_buffer: ArrayBuffer<'js>,
        offset: usize,
        length: usize,
    ) -> Result<Value<'js>> {
        BufferPrimordials::get(ctx)?
            .constructor
            .construct((array_buffer, offset, length))
    }

    fn from_encoding(
        ctx: &Ctx<'js>,
        mut bytes: Vec<u8>,
        encoding: Option<String>,
    ) -> Result<Value<'js>> {
        if let Some(encoding) = encoding {