Function spirt::spv::extract_literal_string

pub fn extract_literal_string(imms: &[Imm]) -> Result<String, FromUtf8Error>

Given a single LiteralString (as one Imm::Short or a Imm::LongStart followed by some number of Imm::LongCont - will panic otherwise), returns a Rust String if the literal is valid UTF-8, or the validation error otherwise.